Textured dimple effect on back and straps grips the armband in place. * Produced from superior quality neoprene with reflective banding * Access to headphones and all controls, including full use of touch screen. * Secure Velcro adjustable fastener. Minimum arm circ 26cm; Max 44cm * Water resistant. Perfect for jogging, cycling, gym etc. Fits October 2010 and October 2011 models