14 ounce cotton canvas for maximum durability 400 threads per inch cotton poplin lining and hood 100% cotton batting in body of carrier to soften edges One inch, high density foam in shoulder straps Quarter inch high density neoprene foam in waist belt National Molding buckles tested up to 235 pounds Waist belt circumference from 25" to 43" Fits from 5' to 6.5' body height with adjustable shoulder and chest straps Sleeping hood adjusts in length to growth of baby Reinforcement stitching used at all fabric intersections Interior rip-stop reinforcements at critical intersections High quality black webbing Durability/strength tested up to 90 pounds