Polar Bluetooth Smart Speed & Cadence Sensor | Black Set francis The Crumpler Yee Ross Backpack

The Crumpler Yee Ross Backpack is lightweight and stylish for daily use

Embossed lining

Dimensions: 9"H x 13"W x 1"D

Powered by an Argonite movement and housed in a stainless steel 43mm case it is protected by brushed gunmetal PVD plating and an anti-fingerprint coating

Polar Bluetooth Smart Speed & Cadence Sensor | Black Set francis The Crumpler Yee Ross BackpackBoost your cycling performance with the advanced technology of the Polar Bluetooth Smart Sensors. Together, the cadence and speed sensors help you gauge your most efficient pedaling rate based upon your speed and distance. The Bluetooth Smart technology syncs all of this data to your smartphone via Polar Flow. Polar Flow is a mobile application that is especially great for setting goals and tracking your progress. [Details] Compact and lightweight