Girls will be cozy and dry wearing the Terramar Boy's Body Sensors Micro Polyester Fleece Zip Neck Top. Thermolite double fleece construction features hollow core fibers for excellent warmth with less bulk. Powered by unique Terramar unique ec2 Qwik Dri thermoregulating technology, the Thermolite fabric is lightweight, moisture wicking, and breathable. Works great on its own or as a base layer for cold weather. Constructed of 100% micro polyester fleece fabric. ec2 Qwik Dri Thermoregulation Comfort Technology. Thermolite fleece traps air and moves moisture to keep you warm and dry with minimal weight. Anti pill construction looks good for the life of the garment. Soft, breathable, and fast drying with a zip neck opening. Tagless for extra comfort. Fabric provides UPF 50 sun protection. Anti microbial treatment for odor prevention. Import.