GymBase Performance Longsleeve — Black
GymBase Performance Longsleeve — Black
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Built for cold starts and long sessions. A lightweight cotton longsleeve with the GymBase hexagon on the left chest — the layer you warm up in and forget you're wearing.
- 4.2 oz 100% Airlume combed ring-spun cotton — lightweight and breathable
- Retail fit that sits close through the body
- Ribbed cuffs, side-seamed construction
- Soft-hand print that moves with the fabric
- Fit: Slim retail fit — true to size. Size up if you want room to layer.
Train hard. Stay grounded. This is your base.
Fabric & Fit
Fabric & Fit
Built to be worn, not framed. Heavyweight garment-dyed cotton on our core tees (6.1 oz), premium 8 oz+ fleece on hoodies, crews and joggers, and smooth four-way stretch on training pieces. Every product page lists the exact fabric, weight and fit, and the Size Guide has flat measurements for each piece.
Shipping & Returns
Shipping & Returns
Free standard shipping on orders over $75, worldwide. Orders are prepared and quality-checked in 2–5 business days, then delivered in 5–10 business days (US) or 10–20 business days (international). 30-day returns on unworn, unwashed items — see our refund policy for details.
Care
Care
Machine wash cold, inside out, with like colors. No bleach. Hang dry or tumble low. Do not iron the print — it will outlive the shirt if you treat it right.
