Seaweed Tencel Sports Bra - Black

A double-layer sports bra in a soothing SeaCell™ × TENCEL™ blend with Icelandic seaweed minerals active at the skin surface. Comfortable support without foam padding or underwire. A fabric that nourishes your skin in the place where it matters most: tight against warm skin, for hours.

Second-skin feel. Low compression. Mineral-rich fabric that soothes as you move.

Your skin is most absorbent where fabric sits tightest and warmest. A sports bra is exactly that: full contact, all day, right against your chest. What's in the fabric matters here more than anywhere.

Why This Blend Works

28% of this fabric is SeaCell™: a fiber made by embedding nutrient-rich Icelandic seaweed into the lyocell production process. The seaweed retains its natural minerals, including calcium, magnesium, and vitamin E, which are activated by your skin's natural moisture during wear.

The other 67% is Lenzing-certified TENCEL™ lyocell, made from sustainably harvested wood pulp in a closed-loop process. It adds silky smoothness, fast moisture transport, and durability. Together, these two fibers create something neither does alone: a fabric that's actively nourishing your skin while performing through your hardest sessions.

We add 5% elastane, the minimum needed for stretch and recovery in a bra that needs to hold its shape through movement. The remaining 95% is plant-based fiber.

Double-layer construction provides comfortable support without foam padding or underwire. Biodegradable elastic made from 70% organic cotton and 30% natural rubber. Organic cotton labels. Every component considered.

No polyester. No nylon. No synthetic coatings. No chemical finishes. Just fibers that work because of what they are.

Why You'll Love It

✔ SeaCell™ minerals at the skin surface: calcium, magnesium, and vitamin E activated by natural skin moisture
✔ Permanently embedded, not a coating, not a treatment, doesn't wash out
✔ Lenzing-certified TENCEL™ lyocell: silky smooth, fast-drying, sustainably produced
✔ Double-layer construction: comfortable support without foam padding or underwire
✔ Natural temperature regulation: adapts to your body temperature during workouts
✔ Odor-resistant: no chemical finish required
✔ OEKO-TEX Standard 100 certified: tested for 1,000+ harmful substances
✔ Biodegradable elastic: organic cotton and natural rubber
✔ No polyester, no nylon: 95% plant-based fibers
✔ Built to match: pairs with our Seaweed TENCEL™ Leggings for a complete set

Perfect For: Yoga and Pilates | Strength training | Running | Everyday layering | Sensitive skin | Anyone who cares what their skin absorbs

Fit: Second-skin fit | True to size

Composition
Main: 67% Lenzing-certified TENCEL™ lyocell, 28% SeaCell™, 5% elastane (260gsm interlock, double-layer)
Elastic: 70% organic cotton, 30% natural rubber
Labels: Organic cotton