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Sienna Tank
$115
Rated 4.4 out of 5
Based on 76 reviews

Seriously comfy and universally flattering on all sizes. "Must have" is an understatement.

Fabric Guide

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:

Size: Find My Size

Find My Size

Product image

Sienna Tank - White OceanRib

Coverage:

Less Support More Support

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 5'11", 36B and is wearing a size M.


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.

Still not sure about the fit or style? We’re here to help!

Start a live chat with our fit experts now.

4/XS
6/S
8/M
10/L
12/D/XL
14/DD
Less Support More Support
Fit Details

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 5'11", 36B and is wearing a size M.


Still not sure about fit or style? Start a with our fit experts.

Fabric + Care Instructions

Handwash in cold water, dry flat. Learn More.


83% Recycled Polyester + 17% Spandex

Sustainability

In our mission to cut plastic, this product comes in biodegradable and recyclable packaging.

Styled by You

Show us how you style your #VitaminAswim

average rating 4.4 out of 5
Based on 76 reviews
  • 5 Stars
    55 Reviews
  • 4 Stars
    6 Reviews
  • 3 Stars
    7 Reviews
  • 2 Stars
    4 Reviews
  • 1 Star
    4 Reviews
83% of reviewers would recommend this product to a friend
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
Quality
Rated 4 out of 5
Support
Rated 3 out of 5
Customer photos and videos
76 Reviews
Reviewed by Marina W.
Verified Buyer
I recommend this product
Bra Size
40D
Height
5' 9"
Size Purchased
14/DD
Size Normally Worn
12/D/XL
Rated 5 out of 5
Review posted

Great color

Love the color. Love the fabric. Love that it's eco-friendly. Runs a bit small.

Loading...
Fit
Rated -1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Quality
Rated 5 out of 5
Support
Rated 4 out of 5
Was this helpful?

Vitamin A Swim

Hi Marina,

So glad to hear you are loving the Sienna Tank.

xx

Reviewed by Jamie
Verified Reviewer
I recommend this product
Bra Size
34C
Height
5' 5"
Size Purchased
10/L
Size Normally Worn
6/S
Rated 5 out of 5
Review posted

My favorite!

I have this top and the matching Midori bottoms in 5 different colors. I’m 30 years old with a semi athletic build, 34C cup size. The large size in both tops and bottoms fit me perfectly! I love surfing and going to the beach in this suit all summer long. It’s supportive, flattering, sexy and keeps everything in place. Vitamin A is the only brand of bathing suits I own. Nothing else compares!

Loading...
Fit
Rated -1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Quality
Rated 5 out of 5
Support
Rated 5 out of 5
Was this helpful?

Vitamin A Swim

Hi Jamie,

The Sienna Top paired with the Midori bottom is a match made in heaven :) We appreciate your continued support.

xx

Reviewed by Kimberli N.
Verified Buyer
I recommend this product
Bra Size
34C
Height
5' 0"
Size Purchased
8/M
Size Normally Worn
8/M
Rated 4 out of 5
Review posted

Love the fit and color

I'm normally a 34C and this top in M fit perfectly. The band is not too tight and the straps are not too long which is a problem I see a lot of at my short height. My only critique is that the material is so light and it's beautiful but thin so I would be nice to have removal pad options.

Loading...
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
Quality
Rated 4 out of 5
Support
Rated 2 out of 5
Was this helpful?

Vitamin A Swim

Hi Kimberli,

We appreciate your feedback! 💛

xx

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.

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