Alpinestars Amp-3 Backpack - Black668303446 Product Description Sport backpack with rain cover included for wet weather performance Perfect technical backpack designed for functionality and for carrying gear, both on and off the bike Backpack features an overall capacity of 17 liters Constructed from a heavy duty tech fabric with structured, padded walls and lower body reinforcements to help maintain the bags shape Full, long zippered openings for easy and wide access Wide adjustable