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Nau Ribellyun Tank

Style #540w01 Nau donates 2% to the partner of your choice = $0.96

A tank that's as sexy as it is utilitarian. The organic cotton and Tencel fabric creates a supple, fine rib knit that complements any body, while the strappy back design allows the freedom to move.

Ribellyun Tank
Color: Blade Heather
  • 005
  • 067
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The Ribellyun Tank blends organic cotton with Tencel®, a soft, quick-drying fiber derived from eucalyptus trees. The result? An ultra-lightweight, breathable, quick-drying fine rib knit with an easy drape and soft feel. When combined, the fibers also create a heathered effect for visual softness.

  • Lightweight, breathable Tencel® and organic cotton rib knit delivers a soft, luxurious hand that wicks moisture and stays dry.
  • Fine rib knit adds movement and stretch.
  • Tailored Details: Self fabric neck and armhole binding, strappy back design.
  • Slim fit.
  • Fit: Slim
  • Weight: 2.7 oz.


Machine wash cold (up to 86°f), line dry only, no bleach

Fabric Details:

A 1x1 rib knit 52% org. cotton/ 48% tencel blend , soft, drapey and comfortable.

Fabric Source: China
Production: China

We're always looking for sustainable fibers which offer a fine hand and superb performance characteristics without destroying the environment. Tencel® delivers on both. Made from the pulp of sustainably grown eucalyptus trees, this regenerating fiber is manufactured using an extremely efficient, closed-loop system which is processed using a non-toxic organic solvent solution. 98% of the materials used to process Tencel® are recovered and reused making Tencel® the most eco-friendly, regenerating fiber.

The Ribellyun's cotton content is from certified 100% organically grown cotton, which does not use pesticides, herbicides, synthetic fertilizers or defoliants at any point in its growth and development. To understand the impact this makes on a micro and macro scale, we have to take a closer at the numbers: Currently, 9.4 billion pounds of pesticides and synthetic fertilizers are used annually in the US alone. This breaks down to using roughly ⅓ pound of synthetic fertilizers to grow one pound of raw cotton in the US, and it takes just under one pound of raw cotton to make one t-shirt. Of course, research shows that the use of pesticides and synthetic fertilizers pollute rivers, streams, and air, as well as cause irreparable damage to one of our most vital resources—soil. In a nutshell, we hope the use of organic cotton across all of our garments will reduce, in a small way, the detrimental impact pesticides and fertilizers have on our environment.

The Nau and Forever Guarantee:

If one of our products fails to satisfy you at the time you receive it, or does not perform to expectations during its long lifetime, simply return it to us. We'll replace it, repair it, issue a credit or extend a refund.

Because we build sustainability into everything we make, our products are designed to have a long lifespan, longer sometimes than their usefulness to a single person. For this reason, we guarantee them to be free of manufacturer defects whether you're the first, second or simply most recent owner. Hand it down, pass it on, give it away: we'll warranty a product until normal wear and tear run their course. Please understand that we can not guarantee products employed for purposes other than their intended use, and that even under the best circumstances, we do expect they'll wear out before you do.

If you do need to return a product to us, call us at 877-454-5628 or email us at for instructions.

Whenever you send an item to us for an exchange or credit, it's best to use a shipping method that will provide you with a tracking number and delivery confirmation. Please keep in mind Nau will not be responsible for goods that are lost or stolen in transit. Be sure to include your daytime phone, email address, mailing address and a short explanation of the problem we need to address (photos are helpful too). If we do need to send you a replacement, we'll pay the shipping.

If you have a warranty item that can not be repaired, and there is no proof of purchase, we will replace it. If there is no proof of purchase and we no longer make the item, we will issue a credit in the amount of the last sale price.  The care label must be intact on all warranty replacements.

why nau?
At nau, our goal is to use design to redefine business so that it can be a force for change. We do this by making sustainability and philanthropy inherent in everything we do; by blending the tailored and the technical to craft urban and outdoor performance apparel; by pioneering premium, eco-friendly fabrics; and crafting clean, intuitive silhouettes that are
built to move.
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