When the temperatures are climbing, keep your cool with the Terrex Swift Drydye 1/2 Zip Long Sleeve T-Shirt. Athletic fit, DryDye process saves 25 liters of water per shirt. Looser, highly breathable knit actively vents excess heat. High surface area speeds moisture-wicking for a cooling effect. Half-zip closure. Long sleeves, logo hit at the chest. 100% polyester.