Engineered for side sleepers, the Big Agnes Sidewinder features second-generation patented technology that delivers warmth and comfort across all sleeping positions. Body-mapped insulation strategically targets heat retention while cushioning hips and shoulders for pressure relief and support throughout the night. Features Second generation side sleeper technology: designed for people who sleep on their sides with a technical fit, patterned to move with you as you roll from one side to the other Optimized profile and thermally efficient footbox is patterned to mimic body position while lying on your side Down fill with a water-repellent finish throughout the bag provides lofty warmth Strategically placed synthetic insulation to provide padding and pressure relief at the knees, hips, and shoulders Close fitting, jacket-style hood keeps insulation close to the body without sacrificing mobility Keep pillow in place with unique Pillow Barn made of stretch mesh material with interior access from either side for easy adjustment Smooth, quick zip with anti-snag locking zipper with no-draft Zipper garage, and long, ambidextrous zipper Easily adjust hood without unzipping using low-profile internal cordlock access Seal out drafts by cinching insulated tube along upper hood opening Storage sack & stuff sack included Specifications 20 (-7°C): Small Regular Long ISO Comfort -1°C ISO Limit -7°C Fill Type 650 DownTek™ + FireLine™ ECO Total Weight 1.02kg 1.10kg 1.23kg Total Fill Weight 390g Down + 170g Synthetic 420g Down + 183g Synthetic 470g Down + 200g Synthetic Compressed Bag Size 24 x 20cm 25 x 20cm 27 x 22cm Stuff Sack Size 14L 20 x 44cm 14L 20 x 44cm 14L 20 x 44cm Max User Height 168cm 183cm 198cm Shoulder Girth 147cm 155cm 165cm Hip Girth 132cm 140cm 160cm Foot Girth 84cm 91cm 102cm 0 (-18°C): Small Regular Long ISO Comfort -8°C ISO Limit -15°C Fill Type 650 DownTek™ + FireLine™ ECO Total Weight 1.47kg 1.57kg 1.72kg Total Fill Weight 765g Down + 170g Synthetic 815g Down + 183g Synthetic 890g Down + 200g Synthetic Compressed Bag Size 24 x 25cm 25 x 25cm 27 x 27cm Stuff Sack Size 26L 25 x 52cm 26L 25 x 52cm 26L 25 x 52cm Max User Height 168cm 183cm 198cm Shoulder Girth 147cm 155cm 165cm Hip Girth 132cm 140cm 160cm Foot Girth 84cm 91cm 102cm
