Nike Boys' Avlnch GFX 2.0 Shorts (Little Big Kids) Imported Machine Wash SWEAT-WICKING POWER. ICONIC DESIGN. The Nike Avalanche 2.0 Shorts offer sweat-wicking fabric, flat seams and a comfortable fit on the court. Dri-FIT fabric wicks away sweat to help keep you dry. With ventilated side panels and great color blocking, they encourage confidence as you take your game to a new level.