SIZE CHART: SIZE 36-38:US SIZE 5; suitable for shoe length 240cm; SIZE 39: US SIZE 6; suitable for shoe length 250cm; SIZE 40-41:US SIZE 7; suitable for shoe length 255cm; SIZE 42:US SIZE 8; suitable for shoe length 260cm; SIZE 43-44:US SIZE 9; suitable for shoe length 265cm; SIZE 45-46:US SIZE 10; suitable for shoe length 270cm; Perfect protection3 mm neoprene with heat-reflecting titanium adhesive keeps feet toasty when the water's chilly. Comfortable to wearthe surfing booties is soft, fleece-like lining repels water and dries instantly for superior warmth and comfort. Reasonable design3mm scuba booties made of deep split toe to support proper balance.Drawstring closureeasy to put on and take off. Wide application:This wetsuit booties perfect for snorkeling diving walking along the beach,protect your feet from cut puncture scratch and cold water.Great gift for family friends lover ect. High quality: kayaking surfing booties can be fitted for men women and kids, please choose the size according to your feet length and reference to our size table image. Due to everyones foot shape is difference and measuring tolerance 1cm allowed.