ColdPruf Women's Honeycomb Base Layer 1/4 Zip Mock Neck Top 88% Polyester/12% Spandex Imported Single layer, textured fleece 1/4 zip mock turtleneck top. Great as base layer, mid layer or for activewear Extended body and sleeves for ultimate fit Built in Thumbholes Tagless garment with flat seams for comfort Thermal choice system: cold to extreme cold weather/low to high Activity