Solid Diamond Series Baseball Knicker 2.0 Polyester is designed for reliable performance in baseball. 12 ounce per linear yard, 100% polyester stretch double knit. Key features include "R RUSSELL" back left hip"; Branded silicone knitted elastic waistband with tunnel belt loops; Two-snap closure; Zipper fly; Two Set-in double welt back pockets with button closure; Reinforced knees.