Seaweed Tencel Zip Longsleeve – Black

A full-zip training layer in a soothing SeaCell™ × TENCEL™ blend with Icelandic seaweed minerals active at the skin surface. Sculpting seam lines. High collar. A fabric that nourishes your skin while you layer up.

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

Your skin is most absorbent when it's warm and covered. A longsleeve zipped tight during a long run or outdoor session is exactly that: warm skin, full contact, extended wear. 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 structure to the knit. 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. The remaining 95% is plant-based fiber.

No polyester. No nylon. No synthetic performance 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
✔ Full-zip front: easy on and off, breathable styling
✔ High collar: sleek, elevated, warm without overheating
✔ Sculpting seam lines: contours the body with a couture feel
✔ Natural temperature regulation: cool when it's hot, warm when it's not
✔ Odor-resistant: no chemical finish required
✔ OEKO-TEX Standard 100 certified: tested for 1,000+ harmful substances
✔ No polyester, no nylon: 95% plant-based fibers

Perfect For: Running and outdoor training | Yoga and Pilates | Everyday layering | Studio to street | Sensitive skin | Anyone who cares what their skin absorbs

Fit: Full-zip front | High collar | Sculpting seam lines | True to size

Composition
Fabric: 67% Lenzing-certified TENCEL™ lyocell, 28% SeaCell™, 5% elastane (260gsm interlock)
Thread: 100% lyocell
Labels: Organic cotton