Some studies have investigated whether prolonged exposure to polyester may affect reproductive health. The evidence is still developing, but it is enough to make fibre choice worth questioning.
Polyester dominates activewear because it is inexpensive to mass-produce. That commercial advantage says little about how it feels against skin, how it holds odour, or what happens when it sheds.
Washing and wearing synthetic garments releases microscopic plastic fibres. They move into waterways, dust and the wider environment, where they are extremely difficult to recover.
GIAVA crew necks use 100% Tencel™ Lyocell—a smooth, wood-pulp-derived fibre that breathes naturally, manages moisture and moves easily without relying on polyester.
Better materials only matter when the finished garment is built with equal attention. GIAVA focuses on certified fibres, restrained design and versatile pieces made to stay in rotation.
Wear it for training, travel and everyday life. If the fit is not right, return or exchange it within 30 days—free, straightforward and without the hard sell.
SHOP GIAVA CREW NECKS
★★★★★ Customer favourite
Temperature-regulating. Naturally moisture-managing. Smooth against skin. Built for training, but restrained enough for the rest of your day.
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30-day guarantee
Try the fit in real life. Return or exchange it within 30 days.
Natural fibres only
Tencel™ Lyocell, certified organic cotton, merino, linen and bamboo-derived fibres.
Fast, tracked shipping
Every order tracked end-to-end, with free shipping over $75.