Boy's Rundown Slider. MPZ? Technology offers durable and lightweight protection at key contact points. Armour?Stretch improves mobility and accelerates dry time with lightweight fabrics built in a 4-way stretch. Moisture Transfer System keeps you Dry and Comfortable. Compression fit for bolstered muscle support and increased circulation resulting in higher efficiency output and increased stamina. Double layer mesh cup pocket for superior durability. 7-inch inseam. 7.9oz 96% Polyester/ 4% Elastane. Imported.Fit: Compression Sizes: Youth Small,Youth Medium,Youth Large, Colors: Black,White,