Magic Marine Fullsuit 5/4mm Back Zip Mens Steamer in Black/Blue The new Magic Marine Brand Fullsuit 5/4mm Back Zip Mens Winter Wetsuit uses top quality materials in its design. This suit is light, comfy and durable - with great amounts of stretch in the arms for better freedom of movement when in the water. The M-Flex 50% Neoprene and 4-way stretch supertex makes the suit both comfy and super flexible for the best experience in the water! An ideal winter wetsuit for all your watering adventures. Features GBS Glued Blind Stitched 4WaySupertex reinforced knees Clean neck closure PK back-zip closure with backup shield Super-stretch underarms and crotch for maximum manoeuvrability Less panels enabling less seams Junior ankle openings