Our Lightweight R4® Jacket is made from warm, durable microfleece and combined with a full-stretch laminate for windproof protection in cold conditions. Lightweight, durable low-nap microfleece face. Full-stretch Polartec® Windbloc® laminate. R1® interior-grid construction speeds wicking. Nonlaminated R1 fabric under the arms enhances mobility and breathability. Drawcord collar with Supplex® stand; protective chin flap for comfort; seamless shoulders for comfort under a pack. Pockets: two handwarmers, one chest and two internal drop-in. Drawcord hem. Lightweight R4® shell: 8-oz Polartec® Windbloc® 100% polyester microfleece laminated to R1® Polartec Power Dry® polyester. R1 panels: 6.5-oz Polartec Power Dry 93% polyester (60% recycled)/7% spandex. Recyclable through the Common Threads Recycling Program. 467 g (16.5 oz) Made in Colombia.