LONG JOHN:- 5 mm double lined neoprene body, and 4 mm crotch.- Titanium inside.- Ultrastretch neoprene behind the knees.- Longer velcro fastening on the shoulder.- Legs with Small Diamond.- Seams protected with RF-06.- Reinforcement RF-06,on hip pad and knees.- Ankles preformed to facilitate the entrance of the foot. Compare prices from: Seland in Men's Clothing