Protects your battery from rain and snow and also keeps your battery insulated.  It gives protection against the elements while riding or transporting on a car rack.  Fits diameters 3-1/2" to 4-1/2".  There is a pocket for storage of small items such as a smart phone.

Mfr Bio

The vision for BiKASE was born out of a desire to provide cyclists well designed products that address the needs of all types of riders.  Whether for an extended adventure, riding for exercise, commuting, touring, training, or trail riding, Bikase delights in designing and producing practical accessories for you and your ride.  Their family operated business is located in Milwaukee, an area rich with cycling heritage. Wisconsin’s roads, trails, kettles, landscapes and seasons are an inspiration.  The team at BiKASE invests it’s energy creating great products that they think will make your ride experience better and more enjoyable.