Specifically designed for the RideCase series, the RideCase ArmBand conveniently holds your smartphone and is perfect for indoor and outdoor activities. The wide medical grade elastic band and silicone grip provides extra comfort and security while the 3M reflective highlight adds a margin of safety in low light conditions. - Material: Elastic band & engineering grade plastic - Attachment: Hook and loop fastener - Compatibility: RideCase & SmartPhone DryBag series - Fit Arm: 17-45 cm / 6.7"-17.7" - Size: 11.2 x 6.8 cm / 4.4" x 2.7" - Weight: 40 grams