Youth Piped Diamond Series Baseball Knicker 2.0 Polyester is designed for youth athletes seeking reliable performance for baseball. 12 ounce per linear yard 100% polyester stretch double knit. Key features include 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; 1/8" contrast color piping on side seam.