Splash Velocity II Sport Armband Case for iPhone 5 with Shell case iPhone 5 Armband. Compatibility: The New iPhone (iPhone 5) 2012 Model - AT&T, Sprint, Verizon. Fits iPhone 5 with a shell case of up to 1.5mm thickness. Design: Neoprene material with a polyurethane frame and reinfoced edges for ultimate durability Material: Neoprene material breathes easy during workouts or runs, making for a comfortable wear Size: The strap is adjustable to accommodate varying arm thicknesses. Includes two fitting slots based on individual size. Durability: The neoprene material and velcro are reinforced with a thin cotton stitching to prevent tearing, and offering lasting use