You won't be chilly when you wear this Women's Aquasphere Phelps AQUA SKIN Triathlon Shorty on your next warm water swim! Made with 1.5mm of Glideskin neoprene as well as a Dura Glide super stretch neoprene coating, this shorty will let you glide so smooth through the water. Other features include: durable sealed seams, panels under the arms and in the crotch are to prevent chafing and to add comfort, a Thermo-Guard technology for added warmth, an easy-pull back zipper for easy entry/exit, 100% UVA and UVB protection from the sun, and a short john/shorty design for the ultimate in range of motion.