Ideal for all diving and snorkeling skill levels * Extremely lightweight for increased performance and ease of travel * Easy adjust quick-release buckles * XSmall - Mens shoe size 5-7 & Ladies 7-9 | Small - Mens shoe size 7-9 & Ladies 9-11 | Regular - Mens shoe size 10-12 & Ladies 11+ | XLarge - Mens shoe size 12+