Durable, breathable Fortius™ Air 20 stretch nylon plain weave is lightweight, air-permeable, and made with 42% recycled nylon FC0 DWR (Durable Water Repellent) adds water repellency and is PFAS-free 100% recycled 40gsm stretch synthetic insulation is breathable, warm, and light, and adds freedom of movement Uninsulated sleeves reduce weight and improve packability Adjustable, low-profile, nylon-lined, uninsulated StormHood™ adds protection and fits under a helmet Lightweight stretch Octa® Fleece side panels provide freedom of movement and provide ventilation Zippered hand pockets secure small essentials Adjustable drawcord at hem seals out drafts Fitted, with articulated patterning for mobility, comfort, and easy layering Performs as a midlayer or standalone