Samsung Galaxy S4 Case, Shocksock [Reflective] [Black Blue] Samsung Galaxy S4 Armband Sports Gym Bike Cycle Jogging Armband with Adjustable Elastic - Black & Blue, to fit arm of 25cm/10 inches and above Optimal sports flexibility Samsung Galaxy S4 i9500 case armband Machine washable Elastic strap allows arm sizes from 25cm/10 inches and above Reflective material for night time use Colour: Black / Blue