Joe's USA Youth Open Bottom Baseball Pants PRO-CLASSIC, 100% polyester, double knit is a pro-weight fabric that is knit to allow two-way stretch, and is highly abrasion resistant 2 1/2" knit waistband with silica gel Loose fit, straight leg pattern with hemmed construction Leg ...Joe's USA Youth Open Bottom Baseball Pants PRO-CLASSIC, 100% polyester, double knit is a pro-weight fabric that is knit to allow two-way stretch, and is highly abrasion resistant 2 1/2" knit waistband with silica gel Loose fit, straight leg pattern with hemmed construction Leg opening features hook and loop fastener inseam adjustment - adjust your seam instantly! Two inset back pockets, pro tunnel belt loops and reinforced double knee YKK zipper and double snap closure Cover-stitched seams