Set the pace in the Nike Pacer 1/2 Zip Top. Dri-FIT technology wicks sweat so you stay dry and comfortable. Double-knit jacquard creates two layers of mesh for ventilation and gives a textured appearance. Low mock neck for nonrestrictive coverage. Thumbholes help keep sleeves in place and provide warmth. Ribbed fabric with spandex on the lower sleeves for a stretchy, secure fit to seal in warmth. Flatlock seams move smoothly against the skin. 1/2-zip design lets you control ventilation. Step hem is longer in back for coverage as you move. Hem is split to let you move freely. Reflective bar on the back for visibility in low-light conditions. Relaxed fit for comfort. 100% polyester.