Feel comfortable, confident, supported in mix & match vibrant colours - 100% not see through!
NEW: Pink Bather Top / Activewear
"Super comfy and good to walk and exercise in too. They sit really nicely around the waist and do not dig in. They are perfect!" — Emma
📏 TOPS: True to size - go with your usual sports bra size. Bigger cup? Check your bust measurement
📏 BOTTOMS: Generally true to size - slim waist or between sizes? Size down
Why you'll love them
Our flattering UPF50+ bathers / activewear sets bring effortless, multi-tasking style & comfort to your sun safe beach days. From pilates to the pool, or jump straight into the ocean after your run.
Feel supported but not suffocated.
Pair them in sleek monochrome, or mix and match our vibrant, no fade colours. 100% not see through!
Sun Protection, Fabric & Features
- 100% not see through!
- UPF50+ independently certified to Australian Government standards by ARPANSA (Australian Radiation Protection and Nuclear Safety Agency)
- Blocks over 98% of UVA and UVB for maximum protection
- Premium Italian performance fabric
- Ultra-resistant to chlorine, sunscreen & oils - holds its shape season after season
- Four-way stretch for comfort that moves with you
- Fast-drying
- Sustainably made in Australia from recycled fibres including ocean-recovered plastics & fishing nets
BOTTOMS:
- Flattering high waist with light compression
- No uncomfortable front or back seams
- Full coverage, no annoying wedges!
TOPS:
- Fit like a sports bra for support & comfort
- Flattering coverage & removable foam cups
- 78% recycled ECONYL®️ nylon, 22% Lycra
- 100% gorgeous
Fit & Sizing
Our Size Guide contains a size chart and full measurement details.
ACTIVEWEAR BATHER TOPS:
True to size - go for your normal sports bra size.
For those with a big cup size, checking your bust measurement against our size chart is the best indicator.
Our bather tops offer good support and coverage (they're not skimpy) and our fabric has great four way stretch, so the nature of the fit is that your cup size should be accommodated by the bust measurement and the stretch.
ACTIVEWEAR BATHER BOTTOMS:
If you're in between sizes, size down.
The waistline of our bather shorts accommodate a fuller waistline - if you have a slim waistline, size down from your normal size.
Our fabric has 4 way stretch and so is super comfy with gentle compression for a flattering fit without being too tight.
Model's measurements:
Model Alice wears our size Small, is AU size 10, 181cm tall
See our Sizing Guide for more details, and you can use our website Chat for a direct line to Carly, our founder, to help with your sizing.
Care Instructions
- Rinse in cold water after use
- Cool hand wash with similar colours, drip dry in shade
- Do not tumble dry, iron, bleach, soak or dry clean
- Avoid rough surfaces
Shipping & Returns
- Fast dispatch: same or next business day
- Australia: Free Shipping Australia wide ($15 Express)
- Worldwide: Free International Shipping over AU$250 (AU$15 for orders under AU$250)
or AU$45 Express - Easy 14-day returns - love it or your money back
See our Returns Policy & Shipping Policy for full details including estimated shipping times for your location.
Sizing Guide
We use standard Australian sizing. Find your size below and see our sizing tips - if you're still not sure, chat with us directly on our website.
SIZING CONVERSION - ALL GARMENTS
|
|
XS |
S |
M |
L |
XL |
2XL |
3XL |
|
Australia |
6-8 |
10 |
12 |
14 |
16 |
18 |
20 |
|
US |
2-4 |
6 |
8 |
10 |
12 |
14 |
16 |
|
UK |
6-8 |
10 |
12 |
14 |
16 |
18 |
20 |
|
Europe |
34-36 |
38 |
40 |
42 |
44 |
46 |
48 |
Body Measurements
Find the size that most closely matches your body measurements using the charts below. But don't sweat it - we are happy to return or exchange within 14 days to get you in the perfect fit (as per our Returns policy):
|
|
XS |
S |
M |
L |
XL |
2XL |
3XL |
|
Bust |
85cm |
90cm |
95cm |
100cm |
105cm |
110cm |
115cm |
|
Waist |
68cm |
73cm |
78cm |
83cm |
88cm |
93cm |
98cm |
|
Hips |
94cm |
99cm |
104cm |
109cm |
114cm |
119cm |
124cm |
EXTRA HELP - RASHGUARDS:
Our rashguards are designed with a relaxed, classic tee style fit through the body - as shown on our model. Your usual t-shirt size works best for most customers.
A few things worth noting:
- The fit is relaxed through the torso, more streamlined through the arms and shoulders.
- Fuller or more muscular arms - size up for more room through the sleeves.
- Prefer a firmer fit through the torso than shown - size down.
- Bigger cup size - no need to size up. The design and four way stretch fabric accommodates beautifully, and we have loads of customer feedback confirming this, including from customers up to an 8G cup (wearing our XS).
Our model for this garment, Alice, is a size 10, 181cm tall and wears size S.
On some other styles you'll see Amber, who is a size 6-8, 171cm tall and wears size XS.
ACTIVEWEAR BATHER TOPS:
True to size - go with your normal sports bra size.
A few things worth knowing:
- For a bigger cup size, use your bust measurement against the chart as your primary guide. Our four-way stretch fabric and generous cut accommodate well.
- Not sure? We're happy to exchange or return within 14 days as per our Returns Policy.
Our bathers are modelled by Alice, who is a size 10, 181cm tall and wears our size S.
ACTIVEWEAR BATHER BOTTOMS:
Generally true to size.
A few things worth knowing:
- Slim waist - size down, as the waistband is designed with a fuller waistline in mind.
- Between sizes - size down.
- Four way stretch fabric gives a comfortable, flattering fit without being restrictive.
- Not sure? We're happy to exchange or return within 14 days as per our Returns Policy.
Our bathers are modelled by Alice, who is a size 10, 181cm tall and wears our size S.
LONGLINE SHORTS:
True to size - go for your normal shorts size.
Designed for intentional length and volume, in a classic Bermuda short style. Great for paddling and throwing on after a swim while you dry - but they're designed to swim in them too.
Our bathers are modelled by Alice, who is a size 10, 181cm tall and wears our size S.
Still not sure?
Email us at hello@bigvibesday.com or use the chat function on our website - we genuinely love helping with sizing and want you looking and feeling great.
F.A.Q.s
Why our bathers are different
1. Our bathers are multi-taskers, just like you. They double as UPF50+ swimwear and activewear, so you can go from gym to swim from pilates to the pool in style and comfort. They're fast drying too.
2. Our bather shorts provide full cheek coverage - no wedges, and save the dental floss for the bathroom. You can be practical and look hot on the beach.
3. The high waistline of our bather shorts is designed to lightly support the belly and flatters everyone.
4. We use premium Italian fabrics - with four way stretch, ultra durability and resistance to chlorine, sunscreen and oils. So our bathers last longer and don't go saggy. You'll be wearing them season after season, and reaching for them on every holiday.
5. Designed by women for women - so we've gone for the comfiest ever seam placement. No front seam, no weird back seam. You'll be comfortable in them all day, on the beach and beyond.
6. Our bathers are made in Melbourne, Australia to the highest quality control standards.
WHY OUR BATHERS ARE WORTH IT
We make sustainable, long lasting UPF50+ fashion. It will cost you less over time, and less per wear, than cheaply made fast fashion.
1. Premium Quality: Our activewear bathers are spun from premium quality Italian fabrics.
They have superior durability and quality compared to competitor fabrics. They're more resistant to fibre breakage, so our garments keep their shape for longer, and are ultra resistant to chlorine, sunscreen and oils.
Our fabric is engineered to stay looking good for longer, and to last season after season, wear after wear. That means fewer replacements over time - so the actual cost per wear is much lower than fast fashion alternatives.
2. Local ethical production: Our garments are proudly made in Melbourne, Australia by our Ethical Clothing Australia accredited manufacturer, ensuring high quality control standards apply to all our garments.
3. Versatile: Our garments aren't built for throwaway fashion cycles. They're timeless, versatile pieces designed to move with you and not just on the beach - they work whether you're paddling, parenting, or just out and about. You can wear them as swimwear, activewear and casual wear. This is slow fashion done right: fewer pieces, better quality and a lighter footprint on the planet.
4. Sustainable fashion: Sustainability starts with longevity. When you choose garments that last, you're helping reduce textile waste and overproduction. The "buy less, buy well philosophy" supports a more sustainable future - and gives you something you can feel good about wearing, again and again.
5. Investment in your skin: Our UPF50+ garments are an investment in your skin and long term health. For more about the risks of skin cancer and premature ageing caused by sun exposure over time, see more on our About Us page.
6. Confidence: Our customers consistently tell us our garments are more comfortable and flattering on real women's bodies, compared to standard rashguards. They help you look good and feel great - we want you to feel happy, relaxed and confident on the beach and in the sun.
What's so special about our fabrics?
Our activewear bathers are made from premium UPF50+ Italian performance fabrics. They're ultra resistant to chlorine, sunscreen and oils, and exceptionally durable so they retain their shape and resist pulls.
Our bather fabrics also have four way stretch for comfort, they're lightweight, fast drying and are made from recycled fibres, such as fishing nets reclaimed from the oceans. So, they're eco-friendly and sustainable too.
Our UPF50+ protection comes from the structure of our durable fabric itself - not a chemical coating or finish, avoiding concerns associated with chemical treatments, including potential PFAS considerations, and ensuring long lasting protection.
The fabric is key to a long lasting garment that feels great on.
WHERE ARE OUR GARMENTS MADE?
Our garments are proudly made in Melbourne, where we live and work, by our Ethical Clothing Australia accredited manufacturer.
UPF50+ RATINGS & FACTS
UPF50+ is the highest rating for sun protection in clothing. It stands for Ultraviolet Protection Factor. A rating of UPF50+ means the fabric blocks at least 98% of harmful UVA and UVB rays.
Our fabric has been independently tested and rated as UPF50+ (Excellent Protection) according to the Australian Government Standard (AS4399:2020) by ARPANSA (the Australian Government Radiation Protection and Nuclear Safety Agency). UPF50+ is the highest level of protection, so you can enjoy the outdoors with confidence knowing you're protected.
In contrast, a standard cotton shirt or tee generally has a UPF rating of around 5. Not solid sun protection, and doesn't even meet the "minimum" protection rating of 15! Think about that next time you see someone throw on a cotton tee at the beach.
In addition, our garments are designed to provide excellent body coverage while still looking flatteringly cute - even our short sleeve tees have sleeves that cover most of the upper arm, our neckline is not gapey (or tight) and we have a lovely flattering torso length for extra coverage.
Unlike sunscreen, UPF clothing doesn't wear off or need reapplying. It's built into the fabric offering protection wherever it covers your skin.
The UPF50+ protection in our garments comes from the structure of the high quality fabrics we use - not a chemical coating that washes off over time, avoiding concerns associated with chemical treatments including potential PFAS considerations.
As with all UPF fabrics, if the fabric has become significantly stretched out of shape, saggy or thinned in areas, protection may have deteriorated over time and it may be time to replace your garment at the end of its natural lifespan. We use premium, durable performance fabrics designed to last longer than many others. A well cared for Big Vibes Day garment, hand washed in cold water and in accordance with our care instructions, should maintain its protection and shape for years of regular use.
But even with the strongest UPF50+ protection, you are not invincible to UV exposure - seek shade and wear sunscreen on exposed areas. We provide a gorgeous piece of your sun safe armoury.
WHAT SIZE IS RIGHT FOR ME?
You can spot the best size for you by referring to our Sizing Guide that provides a conversion table to all major country size systems.
The Sizing Guide is conveniently available as a pop up on the page of each product.
BATHER BOTTOMS:
Our bather bottoms are designed to accomodate a fuller waistline so if you have a slim waistline, size down from your normal size.
BATHER TOPS:
Our bather tops are true to size - so if your standard size for a sports bra is a size 12, go for our Size Medium. In Australian sizing:
XS = Size 6-8
S = Size 10
M = Size 12
L = Size 14
XL = Size 16.
Our model wears a size S and is an Australian size 10 and 181cm tall.
Need more help?
Contact us by email at hello@bigvibesday or on the chat function on this website - we love hearing from you and are always happy to help with sizing queries. We want you looking and feeling great in the perfect fit.
In the end, don't sweat it - we are happy to exchanges sizes within 14 days to get you in your perfect fit (as per our Returns policy).
HOW QUICKLY WILL I RECEIVE MY ORDER?
We dispatch every order from our warehouse in Melbourne, Australia on the same or next business day.
Shipping to Singapore or Hong Kong is typically 4-8 days (Standard Shipping) or 3-6 days (Express Shipping).
Once we have processed the order, it is in the hands of shipping carriers, such as Australia Post. We have set out their expected shipping times for each part of Australia, and some international markets, in our Shipping Policy. Check it out for further details. We will also send you tracking information once you've made your purchase.
DO YOU ACCEPT RETURNS & REFUNDS?
Yes! We guarantee you'll love your garment - just see our customer reviews! However, if you’re not satisfied with your purchase of any full priced garment (excluding SALE items), we will:
- refund the purchase price, no questions asked;
- or, if your order was placed within Australia, if you prefer (and subject to availability), we will exchange size or style,
if your garment posted within 14 days of receipt of purchase in new and original condition - unworn and unmarked with original swing tags still attached.
For items purchased outside of Australia, we provide refunds but we do not provide exchanges. We recommend you purchase your desired garment as soon as possible and return your existing garment to us for a full refund.
Within 14 days of receipt of purchase please:
- Email us at hello@bigvibesday.com to let us know to expect your return. Let us know your name or order number. No questions asked for return purposes, but providing your reason will be so appreciated to help us address this issue for next time - your feedback means a lot!
- Post your item and include the details of your name or order number (via tracked post) to:
Big Vibes Day
PO Box 5320
Middle Park
VIC 3206
Australia
Return shipping costs must be paid by the customer. We do not refund shipping charges, duties or taxes, and we are not responsible for lost packages. We will provide your refund against the original credit card or other form of payment.
No refunds on sale items, but we are happy to provide exchanges for a different size within 14 days, provided your garment is returned unworn, as new, tags on as per above.
STILL HAVE QUESTIONS?
Email us at hello@bigvibesday.com, DM Carly on Insta @bigvibesday or use our chat button in the bottom right corner. We love hearing from you so don't hesitate to get in touch! Carly x
GLOBAL SUSTAINABILITY AWARD
We are the 2025 Organisation Sustainability Award Winner!
We are proud winners of the global 2025 Organisation Sustainability Award for our responsible rashguards. This award recognises our global leadership in setting new benchmarks in the sustainable fashion industry. From our eco-friendly fabric made from recycled fibres, to our ethical production methods, right down to our packaging - every choice we make is eco-conscious and transparent.
"Their garments aren't just sustainable - they're beautifully made, soft, smooth, and genuinely build to last" - Award founder, Anna Chatburn
Our garments on real people...
We love to hear your feedback
hello@bigvibesday.com
Why I Created This Brand
After having a melanoma removed in my thirties, I take sun protection seriously.
But in protecting my skin, I was tired of choosing between sun safety or style. Coverage or confidence. Practical or cool.
Why were we only being offered tight, clingy, triathlon-esque tops - or worse, frumpy cuts with floral prints that felt dated and Mumsy?
I wanted something that looked as cool as my favourite streetwear. Something I could wear from the beach to coffee. On a paddle board or at school pick up. From ocean swims to resort holidays.
So I built it. Now we're redefining what sun protection looks like.
Relaxed. Fun. Elevated. Thoughtfully made.
Premium Fabrics. Australian rated UPF50+. Sustainable production. Australian made.
We don't compromise on quality or style.
I designed our garments for women like me - women who love the sun, but refuse to sacrifice their style to protect themselves.
We choose quality over clutter. We want feel good, versatile pieces.
Thank you for being here and supporting my mission to make sun protection fashion forward and fun.
Warmly,
Carly x
Founder & Designer
Big Vibes Day
