Zone3 Neoprene Swim Gloves Unique design with longer length and Velcro strap to prevent the gloves falling off High stretch 2mm neoprene designed to be a tight but comfortable fit. Gripped palm for added stability whilst allowing maximum feel in the water. Sizing in Inches: Measure from the Top of the middle finger to the base of the palm - Small &lt;18.5, Medium 18.5-20, Large 20+