Weather and Sweat-Proof Unique design and Neoprene and PVC construction Soft and Comfortable Thick neoprene band cinches snugly to your arm to minimize bouncing and chaffing issues Headphone port Side headphone port keeps sweat/rain from gettin in your iPhone (headphones not included) Smart design Features a velcro holder for your excess headphone cord Size Fits up to 14 inch arm (355 mm) Fits iPhone and iPod Touch Designed to hold iPhone 3, 3GS, 4, 4S, iPod Touch 3, 4 with the Wahoo Key attached Will not fit Wahoo Bike Case * This item cannot be returned or exchanged unless defective. Earphones not included.