Tuga men's hybrid zip wetsuit tops: Main body is made from 1.5mm neoprene to provide core body warmth for indoor pools or for extra warmth during chilly weather. The sides, sleeves and collar are made from 80% Nylon / 20% Spandex to provide free body movement while swimming. The side zipper is added for easy on/off with a zipper flap to protect skin. Tuga logo at front.THE TUGA DIFFERENCETuga Sunwear is functional and fashionable UV protection apparel and accessories. Our patterns are designed to be form fitting and to incorporate stylish cuts. By colorful designs, we make sure kids are looking the best at the beach or the pool. We use fabrics that are made specifically, both through the knitting and dying process, to meet the 50+ UPF standards of blocking 98% of UV rays (both UVA and UVB), great for sensitive skin. Our products are Skin Safe and Reef Safe!Now, Go Play, We’ve Got You Covered! 100% product guarantee. No questions asked.UPF vs SPFPretty much the same thing. UPF is a rating for clothing and indicates the level of sun protection. The higher the better! UPF 50+ blocks 98% of UV rays. It is also critical that the protection you choose blocks both UVA and UVB rays. Tuga Sunwear does!SIZINGUse age, weight and height as a starting point for children, but please use actual product measurements for best fit. Unless otherwise stated, all our clothing is designed with a regular, comfort fit and not fitted in order to provide the highest sun protection possible. Please check our Tuga Sunwear size charts to ensure the best fit.Please be aware that due to lighting, the color of some garments may appear darker/lighter in real person.