evo.com | XCEL Wetsuit Booties > The XCEL 5mm Infiniti Round Toe Wetsuit Boots are toastier than ever, thanks to a new Thermo Lite Infrared Lining that helps generate and insulate body heat. Stay warmer, surf for longer - simple! 5 mm UltraStretch Neoprene Comfortable, lightweight neoprene with softer foam and a tighter weave textile for less water absorption and better durability. 46deg - 55deg F Pull Up Ankle Loop This pull loop is pressure bonded to the heel for durability. In addition, there is no stitching from this process so less water can get into you booties. Always rinse thoroughly inside and out with fresh water after every use. Hang to dry. Thermo Lite Infrared Lining | XCEL 5mm Infiniti Round Toe Wetsuit Boots - 5 in Black | Neoprene