Nike Aura Crescent Crossbody (4L) Color Shop Black & White Bags & Backpacks. Nike.com Nike Aura Crescent Crossbody Bag 4L Black Black. The Nike Aura Crescent Crossbody Bag (4L) brings together everyday style and practical function in a sleek, compact design. Perfect for days on the go, it features a roomy main compartment for your essentials, plus interior slip pockets to keep things organized. The adjustable strap lets you wear it your way across the body or over the shoulder for a comfortable fit wherever youre headed. Made from durable 100% nylon with a smooth polyester lining, its lightweight, easy to clean, and built for effortless everyday carry. 12" W x 7" H x 4" D Colour: Black Product Code: HQ4370 013