Ortlieb Seat-Pack

Ortlieb Seat-Pack Waterproof Bikepacking Saddle Bag

The Ortlieb Seat-Pack is a lightweight, waterproof saddle bag designed for bikepacking, gravel adventures and cycle touring. Available in 11L and 16.5L sizes, it provides generous storage for clothing, sleeping gear and other essentials without the need for a traditional rear rack.

Mounted securely beneath the saddle and around the seatpost, the Seat-Pack keeps your luggage stable while leaving the rest of your bike free for additional bikepacking bags.

Waterproof Storage for Bikepacking

Made from durable PU-coated ripstop nylon, the Ortlieb Seat-Pack offers IP64 waterproof protection, helping keep your gear dry through rain, road spray and challenging conditions.

The roll-top closure lets you adjust the bag's volume to suit your load, while an integrated air-release valve makes it easy to compress soft items and create a compact, stable setup.

Stable, Rack-Free Luggage

Strong hook-and-loop straps secure the Seat-Pack to the saddle and seatpost without requiring a rear rack. Reinforced material at key contact points adds durability, while an internal stiffener helps the bag maintain its shape when loaded.

The bag also doubles as a rear mudguard, helping protect you from spray on wet and muddy rides.

Choose Your Size

The 11L Ortlieb Seat-Pack offers adjustable capacity from 4.5 to 11 litres and weighs just 345 g, making it a compact option for shorter bikepacking trips or riders with limited space beneath the saddle.

The larger 16.5L Seat-Pack adjusts from 8 to 16.5 litres and weighs 430 g, providing extra capacity for longer adventures and multi-day touring.

Key Features

• Waterproof bikepacking saddle bag

• Available in 11L and 16.5L sizes

• IP64 waterproof and dustproof protection

• Lightweight PU-coated ripstop nylon construction

• Roll-top closure with adjustable capacity

• Air-release valve for easy compression

• Secure hook-and-loop mounting system

• No rear luggage rack required

• Reinforced material at saddle contact points

• Internal stiffener for improved stability

• Suitable for carbon seatposts

• Reflective details for increased visibility

• Can function as a rear mudguard

• Ideal for bikepacking, gravel riding and cycle touring

• 11L weight: 345 g

• 16.5L weight: 430 g

• Maximum load: 3 kg (11L) / 5 kg (16.5L)