Waterproof bikepacking bag

Bikes are a great way to get from A to B, but they don’t have much in the way of on-board storage. The solution is Ortlieb’s range of bikepacking bags, including their nifty Seat Pack. Available in either 11 or 16.5 litre capacities, it’s the perfect size to stow a set of spare clothes, mounting easily and securely to your seat stem. In this position it also serves as a rear fender, protecting you from mud and trail debris. A fully waterproof design keeps contents safe and dry, while adjustable roll closures and an air valve allow you to cinch or expand the volume from 8 to 16.5 litres or from 7 to 11 litres. The larger model needs just 15 cm of space on your seat stem, while the smaller needs only 6cm (ideal for smaller frame sizes or full suspension bikes). The Ortlieb Seat Pack a truly adventure-proof bikepacking essential.