The Guppy is a de-tuned wetsuit made specifically for young toddlers. The 1mm neoprene body provides warmth and UV protection at the same time. The Lycra sleeves and side panels provide flexibility, comfort and room to grow. 6 oz. (170 g) UV Nylon/Spandex sleeves and side panels provided extended sun protection with the complete Shorty providing 50+ UV protection the highest available. The Shorty also provides wind shield and abrasion protection. All seams are flatlock stitch construction that offers your toddler comfort and stretch.