Engineered for heat. The Cooling Tee is knitted from 210g of 65% cotton and 35% DuPont Sorona — a yarn with Oregon peppermint fused into it at 260 °C rather than coated onto the surface, so the antibacterial effect sits inside the fibre and does not wash off. It holds through 100 standard wash cycles with no measurable drop. The finish is quick-drying and blocks up to 95% of UV. The fabric sheds heat fast and stays noticeably cooler against the skin than a standard cotton blank. The collar is reinforced and bound so it holds its shape. ✓ 65% cotton / 35% Sorona, 210g — quick-dry, cool to the touch. ✓ Blocks up to 95% of UV. ✓ Peppermint antibacterial yarn — fused into the fibre, tested to 100 washes. ✓ Wide relaxed body, ribbed hem, reinforced bound crew neck. Ten colourways: Black, White, Grey, Beige, Coffee, Blue, Yellow, Green, Purple and Red. Size guide Start with your height and weight — it is the most reliable way to pick your size. Size Height Weight S 160–170 cm5'3"–5'7" 45–55 kg99–121 lb M 165–175 cm5'5"–5'9" 55–65 kg121–143 lb L 170–180 cm5'7"–5'11" 60–75 kg132–165 lb XL 175–185 cm5'9"–6'1" 70–90 kg154–198 lb XXL 180–195 cm5'11"–6'5" 75–105 kg +165–231 lb + Garment measurements In centimetres. Inches below. Size Chest Length Shoulder Sleeve S 11444.9" 7027.6" 5722.4" 207.9" M 11946.9" 7228.3" 5822.8" 218.3" L 12448.8" 7429.1" 5923.2" 228.7" XL 12950.8" 7629.9" 6023.6" 239.1" XXL 13452.8" 7830.7" 6124" 249.4" Chest is full circumference. Length, shoulder and sleeve are measured flat. Every garment is measured by hand, so allow 1–3 cm (0.4–1.2") of variance. Between two sizes? Go by your height and weight first. Still unsure — just ask us.