Arm bag with 2 zipped compartments, highly reflective, for sport and leisure, main compartment suitable for common smartphones, front compartment for e.g. wireless in-ear headphones, keys, cards, rubberized zippers, splash-proof (IPX4 waterproof grade), continuously adjustable velcro fastener with 2 elastics for elasticity, padded back, 100% polyester, polyester, black/grey