Men's Seaweed Sports T-shirt - Anthracite

A men's performance tee cut in our signature SeaCell™ blend — 210gsm jersey, naturally breathable, naturally soothing against skin. Slightly structured through the shoulder, falling clean through the body, finished with an elevated collar that turns gym gear into something you actually want to be seen in. 68% TENCEL™ Lyocell, 29% SeaCell™, 3% Elastane.

Why You'll Love It

✔ 210gsm SeaCell™ jersey — technical-weight, breathable, soft against skin ✔ 68% TENCEL™ Lyocell — wood-pulp cellulose, smooth as silk, breathable as cotton ✔ 29% SeaCell™ — patented seaweed-infused lyocell, embeds natural antioxidants directly into the fiber ✔ 3% elastane — minimum stretch for recovery and shape retention ✔ Elevated high-set collar — modern, sculpted neckline that lifts the silhouette ✔ Boxy-but-fitted cut — tailored through the chest and shoulders, relaxed at the waist ✔ Soft as silk, breathable as linen — a fabric that does both at once ✔ Naturally moisture-wicking — pulls sweat off skin as vapor before it becomes wet ✔ Naturally resists bacterial growth and odor — seaweed minerals stay active wash after wash ✔ Chlorine-free finish — plastic-free, machine-wash-friendly ✔ 100% cotton stitching — biodegradable and skin-safe ✔ OEKO-TEX® STANDARD 100 certified — tested against 1,000+ harmful substances ✔ Radically reduced microplastic shedding — 97% cellulose-based fiber vs. 100% plastic in polyester activewear

Composition

Fabric: 68% TENCEL™ Lyocell / 29% SeaCell™ / 3% Elastane (210gsm) Thread: 100% cotton Color: Anthracite

Fit

True to size. The cut is structured through the chest and shoulders with a clean drop straight through the body — boxy but not loose. The elevated collar sits high on the neck for a more architectural finish than a standard crew. Designed for training, daily wear, and the moments in between. If you are between sizes, stay true for a fitted athletic cut or size up for a relaxed silhouette.

The ZUBEK Difference

SeaCell™ is what happens when seaweed meets cellulose science. The fiber is spun from wood pulp and infused with Icelandic seaweed extract during production — locking minerals, antioxidants, and trace elements directly into the fiber structure. Those compounds remain in contact with your skin every time you wear the fabric, every time you sweat into it, every wash cycle.

Polyester does the opposite. It traps heat against your body, holds moisture, breeds bacteria, and sheds microplastics into your skin every time you move. Performance polyester is finished with PFAS-based water repellents that absorb through warm, open pores. SeaCell™ is what menswear should have been the whole time — a fabric that performs because of what it is, not because of what's been added to it.

Care

Machine wash cold (30°C), inside out, on gentle cycle. Lay flat to dry — never tumble dry. Do not bleach. Skip fabric softener — it coats fibers and reduces breathability. Iron on low only if needed. Store folded, away from direct sunlight. SeaCell™ is naturally odor-resistant — wash less, wear more. See full care guide.

Origin

Made in Poland. Ethically crafted by hands we know, in a workshop we've visited.

OEKO-TEX® STANDARD 100 certified — every component independently tested against 1,000+ harmful substances and verified below scientifically established thresholds. No PFAS, no PFC, no quick-dry chemistry, no stain repellents.