The Quattro Fleece Women's Zip Mock in collection consists of the highest quality fabric in Acclimate Dry performance fleece using a brushed micro-fleece constructed to be soft and cozy while keeping the body warm and dry through the most extreme winter climates. Heavy weight Micro Fleece fabric 92% Acclimate Dry 8% ''Spandex.'' Moisture Wicking. Breathes. Quick Drying. Flat seam construction for greatest comfort. Tighter Fit for No Bulk Layering. Anti-microbial/ anti-odor protection. Machine Wash and Dry, NO Shrinking. 100% Made in the USA!!!