Small mark on left shoulder. See photos for condition and measurements. One photo shows full body measurement. Neoprene buoyancy material] The kid's full wetsuit is made of 2mm neoprene. Wetsuits for kids can keep the body balance, help your child float more easily in the water, and help your child master swimming and diving skills faster. [High-quality & high-density wetsuit] Flatlock stitching, The lines of this kid's diving suit is delicate and neat to reduce seam irritation, ensure comfort and durability. This children's short wet suit is like the second layer of skin of the human body, which can perfectly fit the body. With perfect elasticity, allows children to move freely and flexibl, it can make the child flexible like a happy fish in the water.