Please allow up to 3-5 business days for all orders placed with standard shipping to ship.









This comfy pullover style crop tank has a scoop neck and low back.
Made with EcoMetallic, the world’s first metallic swim fabric made from recycled nylon fiber.
Fabric Guide
BioSculpt

Plant-based raw material sourced from castor bean.
• Organic alternative to fossil fuel based nylon
• Extra lycra content for strategic support
EcoLux

Made from a blend of recycled nylon and Lycra.
• Superfine matte jersey
• Superior stretch
EcoTex

Made from a nylon and Lycra blend.
• Superfine, scrunchie, touch-me texture
• Sustainably made in California
EcoCotton

Made from a blend of recycled cotton and Tencel.
• A super soft and lightweight knit
• Sustainably made in California
EcoRib

A sexy, stretch-ribbed fabric made from recycled Nylon fabric scraps.
• Lightweight, breathable + form flattering
• Production saves 33 liters of water/meter of fabric
• Sustainably made in California
EcoLinen

Made from 100% Linen.
• Breathable
• Earth friendly + biodegradable
Organic Rib

Made from a blend of sustainable Tencel, organic cotton, and Spandex.
• Super soft
• For texturized, ribbed beachwear
• Sustainably made in California
• GOTS Certified Organic Cotton
• OEKO-TEX certified, Non-Toxic + low impact dyes
Metallic

Made from a Nylon, Spandex, and Metalized Polyester blend.
• Silky soft
• Jersey Stretch
EcoSoft

A super soft plant-based fleece blend made from 60% hemp and 40% organic cotton.
• 99% Compostable and biodegradable
• GOTS Certified Organic Cotton
• Organically grown without pesticides
• OEKO-TEX certified, non-toxic + low impact dyes
Fabric:
Essential Colors:
Limited Edition:
Find My Size
Sienna Tank - Sparkle Stripe
Coverage:
Size 10-12 tops are constructed with more depth to accommodate D-DD cup sizes. For A and small B cups, try wearing back to front, for instant cleavage.
• Pullover
• Wide underbust band
• Fully lined
Model is 9' 1⁄2", bra size 33C and is wearing a size S.
Still not sure about fit or style? Start a Live Chat with our fit experts.
Fit Finder
Measuring Guide
Size Chart
Enter your measurements below to find your recommended size.
We recommend size:
The size selected is not available.

Size | XS | S | M | L | XL | 14 |
US Size | 4 | 6 | 8 | 10 | 12 | 14 |
Underbust | 28 - 29 | 30 - 31 | 32 - 33 | 34 - 35 | 36 - 37 | 37 - 38 |
Cup | A | B | C | D | DD | DD |
Size | US | UK | EU | AU |
XS | 2 - 4 | 6 - 8 | 32 - 34 | 4 - 6 |
S | 6 | 10 | 34 - 35 | 6 - 8 |
M | 8 | 12 | 35 - 36 | 10 - 12 |
L | 10 | 14 | 36 - 37 | 12 - 14 |
XL | 12 | 16 | 37 - 38 | 14 - 16 |
Still not sure about the fit or style? We’re here to help!
Size 10-12 tops are constructed with more depth to accommodate D-DD cup sizes. For A and small B cups, try wearing back to front, for instant cleavage.
• Pullover
• Wide underbust band
• Fully lined
Model is 9' 1⁄2", bra size 33C and is wearing a size S.
Still not sure about fit or style? Start a with our fit experts.
Handwash in cold water, dry flat.
68% Recycled Nylon, 19% Lycra, 13% Metallic Fiber
Our first recycled metallic. Made from a shimmery blend of recycled nylon, lycra, and poly. A glow you can feel good about. Sustainably made in California.
In our mission to cut plastic, this product comes in biodegradable and recycling packaging.
Styled by You
Show us how you style your #VitaminAswim
-
5 Stars58 Reviews
-
4 Stars6 Reviews
-
3 Stars7 Reviews
-
2 Stars4 Reviews
-
1 Star4 Reviews
Love!
Love the quality, Love the fit, Love the color!
Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Runs Small
True to Size
Runs Large
|
---|---|
Quality |
Rated 5 out of 5
Poor
Excellent
|
Support |
Rated 5 out of 5
Poor
Excellent
|
Vitamin A Swim
Hi Tina,
We are thrilled to hear you are loving the Sienna Tank 💙
Classic Vitamin A piece
Love this bikini top! Great for activities or lounging
Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Runs Small
True to Size
Runs Large
|
---|---|
Quality |
Rated 5 out of 5
Poor
Excellent
|
Support |
Rated 5 out of 5
Poor
Excellent
|
Vitamin A Swim
Hi Sydney,
We love to her you are enjoying the versatility of the Sienna top.
xx
Great top!
Loving this! Supportive, modern, true to size.
Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Runs Small
True to Size
Runs Large
|
---|---|
Quality |
Rated 5 out of 5
Poor
Excellent
|
Support |
Rated 5 out of 5
Poor
Excellent
|
Vitamin A Swim
💛

Sustainability is Sexy

Sustainability is Sexy
Our Promise
We believe style + sustainability are inseparable. All of our bikinis and bodysuits are sustainably made in California, from plant-based and recycled materials.
Super Natural.
As a proud member of 1% For the Planet, we give back to organizations who work to protect our oceans and the environment.