Fit Guide
Sea Level designs with high quality, luxe fabrications, clever panelling & precision contouring to create stylish collections that will fit and flatter all body shapes. Our 360° Powermesh lining technology gives hidden support for the ulitmate body sculpturing in swimwear design.
Explore our fit guide to find which shapes are best for your body shape & size. For more assistance, chat with one of our fit specialists via our live chat in the bottom right corner, or send us an email at info@sealevelaustralia.com.au
To find your size, please read our size chart here.
Spliced One Piece
Our best selling silhouette is designed to sculpt and support, this elegant one piece is crafted for a confident, flattering fit. Soft removable cups allow you to customise the level of shape and depth, making it especially suited to fuller busts up to a DD cup.
Delicate stretch ladder trim detailing adds a refined touch, while adjustable, convertible straps ensure personalised comfort and versatility in wear. Powermesh lining through the front and back offers smoothing support and enhances the silhouette with effortless ease.
Bust support
A-DD
Bottom coverage
Moderate
Longline One Piece
Designed as a versatile go-to style for all body shapes, this multifit silhouette comfortably supports bust sizes from A–DD cup. Contour panelling enhances and defines the body, while removable soft cups allow you to customise your fit and depth for added comfort.
Adjustable, convertible straps offer versatile styling options and a personalised fit, while concealed powermesh lining through the front and back provides smoothing support and gentle shaping.
Bust support
A-DD
Bottom coverage
Moderate
Cross Front One Piece
An OG classic style - Designed to flatter and support a range of body shapes, this multifit silhouette is best suited to cup sizes A–E. Fixed soft cups provide wire-free shaping and gentle lift, while the cross-front detail enhances the silhouette with a sleek, modern finish.
Adjustable, convertible straps allow for a personalised fit and versatile styling options, while concealed powermesh lining through the front and back smooths and sculpts the body for confident, all-day wear.
Bust support
A-E
Bottom coverage
Moderate-Full
Square Neck One Piece
Designed to flatter and support cup sizes A–DD, this style features fixed soft cups for gentle shaping and support.
Adjustable, convertible straps allow for a personalised fit and versatile styling options, while concealed powermesh lining through the front and back smooths and sculpts the silhouette for confident, effortless wear.
Bust support
A-DD
Bottom coverage
Moderate
Bandeau One Piece
The Sea Level sleek bandeau swimsuit features the brand’s signature foundation silhouettes crafted from premium eco fabric. Designed to flatter and support cup sizes A–DD, this bandeau silhouette features fixed soft cups, side boning and concealed powermesh lining through the front and back for sculpting support and shape. Gripper tape ensures a secure fit, while adjustable, removable straps offer versatile styling options and personalized comfort
Bust support
A-DD
Bottom coverage
Moderate
Twist Front One Piece
Our OG signature silhouette combines premium quality with lasting comfort and support. Soft to the touch with a durable finish, the recycled fabrication is designed to move effortlessly with the body. Designed to flatter and support bust sizes up to a DD cup, this multi-fit silhouette features soft cup support for natural shaping and comfort.
Soft ruching and contour side panels work to sculpt and enhance the body, creating a sleek, streamlined fit. Adjustable, convertible straps allow for a personalized fit and versatile styling options, while concealed powermesh lining through the front and back provides smoothing support and confident, effortless wear.
Bust support
A-D
Bottom coverage
Moderate-Full
Halter Neck One Piece
Our Halter One Piece styles are designed to flatter and support longer torsos, featuring soft adjustable neck ties for a personalised fit and all-day comfort. Crafted with our signature powermesh lining, these styles offer added structure, shaping and support for a confident, sculpted silhouette.
Bust support
A-DD
Bottom coverage
Moderate
Swim Dress One Piece
Effortlessly refined and designed to flatter, this Sea Level dress combines elevated styling with sculpting support for confident resort wear. Crafted to enhance the silhouette, it offers a sleek and comfortable fit that moves seamlessly from beach to occasion dressing.
Designed to support bust sizes up to a DD cup, this style features a hidden underwire bra for enhanced lift and support, while removable soft cups allow you to customise shape and depth for your perfect fit. Adjustable, convertible straps offer versatile styling options and personalised comfort, while concealed powermesh lining through the front and back smooths and sculpts the body with ease.
Bust support
A-DD
Bottom coverage
Full
Short Sleeve Surf Suits
Sea Level's athletic short sleeve boy-leg style, this Sea Level Swim silhouette is crafted from advanced eco-friendly fabrics using regenerated nylon yarns derived from pre-consumer waste, the recycled textile offers a soft yet durable feel with premium quality and lasting performance.
Designed to support and flatter a range of body shapes, this multifit silhouette is best suited to cup sizes A–DD. An internal bra sheath with fixed cups provides secure, comfortable support, while short sleeves and a boy-leg line deliver enhanced coverage and a streamlined, athletic finish. Concealed powermesh lining through the front and back smooths and sculpts the silhouette for a confident, supportive fit.
Bust support
A-DD
Bottom coverage
Full
Long Sleeve One Piece
Designed for protection, this Sea Level Surf Suit delivers a sleek, supportive fit with a streamlined silhouette. Crafted to move effortlessly with the body, it offers confidence in and out of the water with a refined, athletic edge. This multifit style is best suited to cup sizes A–DD and features an internal bra sheath with soft cups for secure, comfortable support.
Concealed powermesh lining through the front and back provides smoothing structure and shape, while UPF 50+ protection helps shield the skin from harmful sun exposure for all-day wear.
Bust support
A-DD
Bottom coverage
Moderate
Size Chart
The easiest way is to begin is to select the size you usually wear. Our swimwear sizing and measurements are consistent with most swimwear brands.
We always recommend sticking to your normal underwear size as most swimwear will fit using this rule (keeping in mind the Cup Size which is found in the product description).
The body measurements outlined in the size guide below is to help you find your perfect Sea Level Swimsuit.
| US (in) | 4/XS | 6/S | 8/M | 10/L | 12/XL | 14/XXL | 16/3XL |
| Bust | 33" | 34" | 36" | 38" | 40" | 42" | 44" |
| Underbust | 28" | 29" | 31" | 33" | 35" | 37" | 38" |
| Waist | 25" | 26" | 28" | 30" | 32" | 34" | 36" |
| Hip | 37" | 38" | 40" | 42" | 44" | 46" | 47" |
| D | 34.5" | 35" | 37" | 39" | 41" | 43" | 45" |
| DD | 35.5" | 36" | 38" | 40" | 42" | 44" | 46" |
| E/F | 36.5" | 37.5" | 39.5" | 41.5" | 43.5" | 45.5" | 47" |
| International | |||||||
| AUS | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| Eur | 34 | 36 | 38 | 40 | 42 | 44 | 46 |
| UK | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| France | 36 | 38 | 40 | 42 | 44 | 46 | 48 |