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Sienna Tank
$115
Rated 4.4 out of 5
Based on 85 reviews

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

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 EcoRib BT

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.


Find My Size:

Measure

• Cup: Match your bra cup size.

• Underbust: Measure around your ribcage directly below your bust. This is not the same as your bra size.

• Waist: Measure around the smallest part of your waistline, keep the tape a bit loose.

• Hip: Measure around the fullest part of your body.


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

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.


Find My Size:

Measure

• Cup: Match your bra cup size.

• Underbust: Measure around your ribcage directly below your bust. This is not the same as your bra size.

• Waist: Measure around the smallest part of your waistline, keep the tape a bit loose.

• Hip: Measure around the fullest part of your body.


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 85 reviews
  • 5 Stars
    64 Reviews
  • 4 Stars
    6 Reviews
  • 3 Stars
    7 Reviews
  • 2 Stars
    4 Reviews
  • 1 Star
    4 Reviews
85% 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 4 out of 5
Customer photos and videos
85 Reviews
Reviewed by Heidi P.
Verified Buyer
I recommend this product
Bra Size
32C
Height
5' 6"
Size Purchased
8/M
Size Normally Worn
6/S
Rated 5 out of 5
Review posted

Sienna tank

This tank fits great and the chai color is beautiful.

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

💙

Reviewed by Rachelle P.
Verified Buyer
Sienna Tank - Lagoon EcoRib
Reviewing
Sienna Tank - Lagoon EcoRib
I recommend this product
Rated 5 out of 5
Review posted

Perfect top!

I was hesitant to order this top because I’m a fuller cup so I need the support. I ordered 14/DD and it fit great, I’d probably order a 12/D just for a tighter fit. I love this top and it really is a great! I want to order another colour .

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 5 out of 5
Support
Rated 4 out of 5
Was this helpful?

Vitamin A Swim

Hi Rachelle,

We are happy to hear you are enjoying the Sienna Tank! 🧡

Reviewed by Dawn H.
Verified Buyer
I recommend this product
Bra Size
36B
Height
5' 5"
Size Purchased
12/D/XL
Size Normally Worn
10/L
Rated 5 out of 5
Review posted

Great fit

Great fit

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 4 out of 5
Was this helpful?

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.

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