The response to our Neoprene Sleep Sack has been tremendous! We receive emails daily from satisfied customers praising the superior quality and great price of our stunning Neoprene Sleep Sack. RODUCT FEATURES Made from Smoothskin 2.0 mm Neoprene withProper Flat Stitch ConstructionComplete with Internal Sleeves Rear Access Cock Access Super Strong Zig-Zag Stitch on Sleep Sack Entry Size Chest Waist Height SM 36" to 39" (91 - 99 cm) 28" to 32" (71 - 81 cm) 5'6" to 5'9" MD 39" to 42" (99 - 107 cm) 32" to 34" (81 - 86 cm) 5'9" to 6' LG 42" to 44" (107 - 112 cm) 33" to 36" (84 - 91 cm) 5'10" to 6'2" XL 44" to 46" (112 - 117 cm) 35" to 38" (89 - 97 cm) 5'10" to 6'2"