Phone holder for upper arm. Secure adjustable Velcro fastening. Waterproof properties repel sweat. Reflective details for visibility. Clear protective window enables touchscreen use. Compatible with most smartphones. Height: 16cm, width of bottom: 8cm, strap length: 25cm, strap depth: 5cm, phone opening 6.5cm.Washing Instructions Wipe clean only - Phone holder for upper arm. Secure adjustable Velcro fastening. Waterproof properties repel sweat. Reflective details for visibility. Clear protective window enables touchscreen use. Compatible with most smartphones. Height: 16cm, width of bottom: 8cm, strap length: 25cm, strap depth: 5cm, phone opening 6.5cm.Washing Instructions Wipe clean only