Constructed of double stitched pre-curved premium grade synthetic leather outer shell with triple layer of contoured high-density latex foam inner-core system Full cover piping, ventilation holes in palm area, and internal foam lip at finger tips, for safety and comfort Solid grip bar and full Velcro wrist-strap closure system for performance, support and ease of on & off Water repellent nylon non-slip inner lining 100% hand-crafted in Thailand Size Guide Where available, the KIDS size is a 4oz glove, with a suggested age range of 5-8 years old. SANDEE 6oz and 8oz gloves, sometimes labelled as JUNIOR on older units, have a suggested age range of 8 years and up.