Long sleeve fullsuit OYSTERPRENE Fullsuit Kids 4/3 BZ FLY+, designed for young athletes. 4/3 mm thickness for excellent thermal insulation. With a back zip system, it ensures easy and quick wear. The seams are stitched and glued, reinforced at the junction points for increased durability. Includes an internal 'Bat Wing' for better protection against water entry and a secure key pocket.