The Womens XTRdry Cotton Zip Mock Neck Baselayer Top from Polarmax is a midweight performance first top that is packed with features to keep you comfortable and warm from sun up to sun down. This relaxed fit top has Acclimate Fresh Anti-Microbial fabric, XTRdry Moisture Wicking, XTRdry Cotton, and comfort designed seams that work together to keep you comfort on and off the mountain. Polarmax says this baselayer top is ideal for temps 20 - 50 degrees Fahrenheit which means both your winter and spring outdoor adventures are no challenge for this performance top. Add a layer of confidence to your outdoor lifestyle with the Womens XTRdry Cotton Zip Mock Neck Baselayer Top from Polarmax. XTRdry Cotton, XTRdry Moisture Wicking, Quick Drying and Breathable, Acclimate Fresh - Anti-Microbial, Relaxed Fit, Fit: Loose, Warranty: One Year, Material: Cotton/Synthetic Blend, Weight: Mid, Type: Top, Wicking Properties: Yes, Recommended Use: Snow, Antimicrobial: Yes, Anti Odor: Yes, Quick Drying: Yes, Moisture Wicking: Yes, Product ID: 477694, Model Number: 2LC31DSC WH S, GTIN: 0785146534908