Only tried on, never used. Listed as kids' free size, but it seemed a little tight for a second-grade boy. Recommended for preschoolers, such as those in kindergarten or daycare. For those who like brands such as Patagonia, Hunter, SAC, Outdoor, Adidas, Asics, UNIQLO, GU, GERRY, Gregory, THE NORTH FACE, New Balance, Columbia, PUMA, Uniqlo, GU, Markey's, Ocean & Ground, F.O. Kids, Breeze, Junk Store, FITH, Denim & Dungaree, Ralph Lauren, COMME CA ISM, Kladskap, Slap Slip, and Daddy Oh Daddy.