evo.com | Mountain Hardwear Synthetic > Take a deep breath, look at the beautiful landscape around you, and thank the Mountain Hardwear Kor Alloy(TM) Crew for keeping your core warm and dry. This synthetic midlayer features Primaloft Gold Active Insulation and Airmesh technology, for the perfect combination of warmth and breathability in active environments where moisture rules. Underarm Is Mapped with Highly Air-Permeable Fabric to Optimize Breathability in Active Pursuits Deep Center Front Zip for Venting and Easy on And Off Regular Fit Not too tight, not too loose. Standard-fitting apparel will fit without restricting movement Under Arms, Back Panel, and Chest Pocket 100% Nylon Pertext(R) Quantum Air(TM) 20D Stretch Ripstop | 59% Recycled Nylon / 41% Nylon Front Body and Sleeves Pertex(R) Quantum Air(TM) 20D Coated Ripstop | Women's Mountain Hardwear Kor Alloy(TM) Crew 2025 - Medium Black | Nylon