Hot Chillys Women's Clima-Tek Quarter Zip Long Sleeve Base Layer Shirt - This Clima-Tek fabric features a buttery soft, cottony hand, with all of the performance of a polyester spandex. Perfect for summer camping in the mountains and winter wear anywhere. Quarter zip; High collar; Relaxed fit for casual or performance wear; Four way stretch for casual or performance wear; UPF 30 sun protection; 86% polyester 14% spandex; Style: HC5610;