Skip to product information
The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
  • The Square Tank Navy
The Square Tank Navy

The Square Tank Navy
$90
ColorNavy
Size

Size Guide

Size XS S M L XL
US/CA 0-2 2-4 6-8 10-12 14-16
UK/AU 2-4 6-8 10-12 14-16 18-20
EU 30-32 32-34 36-38 40-42 44-46
Bust (in) 31-33 34-35 36-37 38-40 41-43
Bust (cm) - - - - -
Underbust (in) 26-28 28-30 30-32 32-34 34-36
Underbust (cm) - - - - -
Waist (in) 23-25 26-27 28-29 30-32 33-35
Waist (cm) - - - - -
Hip (in) 33-35 36-38 39-40 41-43 44-46
Hip (cm) - - - - -

How to measure

4 interest-free payments with Sezzle

Free standard shipping on orders over $200 USD

ADDING SOME COVERAGE

This full length tank is inspired by The Square Bra. This tank features removable padding, a double layered chest and single layered body so you feel comfortable and supported during your workout. Made in a curve-hugging, moisture-wicking double layered fabric with our signature 437 cloud™ technology.

Details

Pair with matching Essentials Legging and Wrap Top 

Features

  • Longline tank with removable padding
  • Double layered chest and single layered body
  • Square front neckline and scoop back
  • White 437 logo at centre front chest
  • 437 cloud™ moisture wicking single layer fabric
  • Sustainably produced made of recycled polyester

Care & Fit

Size & Fit

  • True to size
  • Model is wearing a size XS -Bust 35" (89cm), Waist 25" (64cm), Hips 35" (89cm), Height 5'5 (165cm)

Materials & Care

  • 82% Recycled Polyester, 18% Spandex
  • Care: Machine wash cold. Dry flat, do not iron

Due to the nature of our performance fabrics and finishes, please allow for slight variations in stretch, softness, color, and texture. These characteristics are inherent to the fabric and finishing process and are not considered defects.

Made with thoughtfully selected materials, tested to meet strict limits for regulated PFAS compounds, including PFOA and PFOS

Sustainability

437 cloud™ Fabric

  • Made from mills recycled post industrial fabric waste
  • Moisture wicking - pulls sweat to outer layer quickly

Factory

  • Traceable yarn source, Oeko-Tex certified
  • Lower carbon emissions during dye process
  • Lower water ratio dyeing machine 
  • Finishing machines are powered by natural gas instead of coal

Shipping & Returns

We offer free shipping on all orders over $200 USD. Please see Shipping and Delivery page for the delivery time to your location.

Express shipping is temporarily unavailable for international orders—thanks for your patience as some deliveries may take a little longer due to global carrier delays.


437 is not responsible for any import duties, broker fees, customs and taxed incurred on shipments, as these are the responsibility of the purchaser. We cannot advise the cost as these charges will vary according to country. As these fees are not computed no applied by 437. If you are unsure about the charges please contact your local customs office for further information.


Please note that orders over $500 USD will require a signature upon delivery to ensure your package arrives safely and securely. Missing orders over $500USD may be required to fill out a police report.


Orders will be packed within 3-5 days of purchasing. Shipping time is dependent on location. We accept all regular priced merchandise within 30 days of the order being placed for a refund on your original form of payment or store credit via gift card. If a refund is selected, a $15 USD restock fee will be deducted from your return amount. If a store credit is selected, your gift card will be issued for the full value of your returned suits in USD and will not expire. Discounts of 25% or more are considered final sale. Please see our return policy for more details.

Paired with

Make it a set

The Essentials Legging Navy

The Essentials Legging Navy

The Essentials Legging Navy
$95

You may also like

Customer Reviews

Overall rating: 5.0 / 5 from 55 reviews.

Customer photo review of The Square Tank / Navy

This top is so flattering! I love it so much. It’s stretchy and so comfortable to wear. I could sleep in it haha. Love 437. I also bought the matching leggings. So comfortable

Linh T. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

My best friend hooked me on 437 a few months back… needless to say I never want to stop buying more sets! I love the material. It’s very comfortable and so beyond cute!

Annia L. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

Really like the compression and cut of this top! I’d buy more sets from the brand.

Lauren S. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

The quality is great and doesn’t fit too tight where it digs into your skin. Love that!

Maggie L. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

I took a chance ordering this set all the way from Nigeria knowing I won’t be able to try it on or return. However, I’m blown away with the fit, very true to size, so flattering and soooo comfortable!!! Love it!

Sharon S. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

I love this tank! It’s my fav item from 437. I’m 5’4, 145 lbs, usually a size M and I got an M. Also 34DD for reference.

Trinity G. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

Love the shape of the neckline! Good support and true to size.

Sarah S. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank Navy

Absolutely love this set! The material is so soft and flattering, and it moves with your body instead of feeling restrictive. The quality is amazing, it’s super comfortable, and it holds up really well during workouts. Definitely one of my favorite activewear sets!

Stephany M. 5/5 Verified

The Square Tank Navy

Customer photo review of The Square Tank / Navy

Loved the items. Wish there were more sizes in stock.

Stephanie K. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

This top is super cute and flattering, runs true to size! This is a thicker material than normal activewear but very soft and form fitting

Nicole K. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

Beautiful top. Absolutely love how the neckline in front is square and a scoop back in the rear. Moisture wicking, great breast support during lifting and pilates

Dayna K. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

The cutest and most functional set everrrr. Can’t wait to get more colors

Ariana L. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

Absolutely love all 437 pieces! They are the MOST flattering and just so buttery soft/comfortable.

Shelby R. 5/5 Verified

The Square Tank / Navy

Customer photo review of The Square Tank / Navy

I am obsessed!!! Their tanks fit at the perfect length! It’s not too cropped and not too long. I love the new square neck one! I want it in more colors!! And their stuff is buttery soft! Love love love

Caroline W. 5/5

The Square Tank / Navy

Love 437! The quality and feel of the material is 10/10!

Jessica H. 5/5 Verified

The Square Tank Navy

I love 437! Would buy every outfit if I could. Unmatched fit and quality❣️

Rohma E. 5/5 Verified

The Square Tank / Navy

Great quality, very comfortable and so flattering. I can’t wait to buy more pieces!

Caroline M. 5/5 Verified

The Square Tank / Navy

Quick delivery, beautiful fabric, I think it’s more suited for smaller busts

Fatima A. 5/5 Verified

The Square Tank / Navy

Absolutely wonderful product and or I love it so much!!! It is very supportive and or so great for working out!!!

Lyla W. 5/5 Verified

The Square Tank / Navy

I love 437!!! I am obsessed with it, the quality, the fit, the material, the colors. When you wash them they resists. Love the brand, the aesthetic and quality! Recommending this brand to all my girlies 💗

Andrea L. 5/5 Verified

The Square Tank / Navy

The set I got is super cute! The material especially of the top is so so good. I love the color and the style and would highly recommend it!

Karishma D. 5/5 Verified

The Square Tank / Navy

I love the qualify! As a girl with a bigger chest (34DD) I sized down to a small & am able to wear with no bra and still feel support at the gym. Will be getting in more colors!

Karina A. 5/5 Verified

The Square Tank / Navy