The North Face Men's Vitesse Delta Quarter-Zip Top uses bamboo carbon fibers create UV protection and moisture-wicking properties in a soft, comfortable, easy-care fabric. This lightweight running top features a mock neck and a front quarter-zip chest for adjustable ventilation. Flatlock seams, monkey thumbs and droptail hem are features committed runners will appreciate. Reflective graphics and The North Face logo. Shell A: 60% bioconstituent fiber (97.6% polyester/2.4% carbon from bamboo)/40% polyester. Shells B & C: 100% polyester. Imported.