Chest Zip Wetsuit for Boys 8-16. Features include: Eco-Conscious Fabric: Nylon elastane blend fabric, Neoprene Foam: StretchFlight Eco neoprene foam, Lining: Warmflight Eco Velvet zoned thermal lining, External Seam Details: GBS (glued and blind stitched) seams for maximum flexibility and minimal water entry external seams, Thickness: 302 mm, Neck: Mock neck, Sleeves: Long sleeve, Entry: Chest zip entry, Glue: Aqua glue eco friendly lamination, Other Features: Key loop, Recycled yarn.