The ergobaby Sport Carrier is composed of airy, durable cotton/poly blend fabric and features a back vent for extra breathability so baby and parent stay cool and happy. The waist belt and shoulder straps have extra inches beyond our other models to suit all sizes and fits. Whether climbing a hill or the stairs, this Carrier makes the experience more enjoyable for all. Carrier body: 65% polyester, 35% cotton. Carrier lining: 100% cotton poplin. Carrier weight: 1. 21 pounds / 550 grams. 1/3 lighter than ergo baby Original Carrier. More breathable and lightweight. Sleeping hood: Detachable, snap-in; 100% cotton poplin with elastic edging and snap-to-strap attach. Supports baby's head while sleeping and protects from sun and wind. Adjusts in length with 5 snap levels for growth of baby. Shoulder straps: padded with 1" high-density premium foam, expanding from 27" - 49". Waist strap belt: padded with 1. 4" high-density EVA foam, expanding from 23. 6" - 51. 18" / 60 cm - 130 cm, an additional 5. 9" / 15 cm over the ergo baby Original Carrier. Chest strap: sliding adjustment. Fill: 100% cotton batting in body of carrier to soften edges. Small stuff pouch, doubles as storage for Sleeping hood. Proper facing-in spread-squat seating position supports baby's hip, pelvis, and spinal development. Carry positions: 3 positions - front, back and hip carry. Carrier fit: Adults from 5' to 6'5" body height (depending on body type, height range may differ). Carries babies from infancy (7 pounds / 3. 2 g to 12 pounds / 5. 5 g with Infant Insert) or up to 4-5 months to maximum 45 pounds / 20 kgs. Machine wash cold with mild detergent on gentle cycle. Dry on delicate cycle and remove when seams are still damp. Air dry.