Protects Your Battery From The Rain, Snow and Keeps the Battery Insulated

- Insulates battery to help operate more efficiently
- Protection against the elements while riding or transporting on a car rack
- Scratch protection
- Pocket for phone (keys or wallet)
- 4mm neoprene black
- Medium: Fits diameters 3.5" to 4.5" in diameter
- Large: Fits surface-mounted battery and is compatible with Bosch, Shimano Steps, Samsun, Yamaha.