Waterproof inner pocket The waterproof inner bag is already included in delivery equipped with the PRO Rearbag tail bag. If necessary, however, an additional waterproof inner bag can be purchased. Included in delivery 1 × Waterproof inner pocket Details Material: 210D polyamide Surface: PU coated Color: black TotaL Weight: appr.0.2 kg / appr.0.4 lb Total Volume: 22.0-34.0 L Installation Instructions