With its exceptional warmth and durability the NRS Youth Farmer Bill Wetsuit will keep your little ones warm and comfortable on those chilly days in cold water.. . . . . 3 mm nylon-coated neoprene offers excellent comfort and warmth. Closed cell neoprene supplements the flotation of your child's PFD. Over-the-shoulder Farmer Bill style delivers excellent mobility and reduces stress points for increased longevity. Hook-and-loop closure along with snaps for secure closure and easy entry/exit. ToughTex seat and padded thighs are double stitched for longevity. Titanium laminated adhesive aids in heat retention .