Gul response 53mm wetsuit mens the gul response wetsuit gives you flexibility and durability featuring x flex super stretch upper body panels giving you over 100 stretch blind stitched and g flex reinforced seat and knee seams keep you watertight and warm x flex 150 super stretch upper body panels for flexibility and freedom of movement d flex durable lower body panels non petroleum based neoprene blind stitched and critically taped g flex tape reinforced leg and crotc