5L–13L Waterproof Bike Saddle Bag Large Capacity Cycling Seat Pack

Carry more without wearing a backpack on every ride. This expandable bikepacking saddle bag offers 5L, 10L, or 13L capacity for clothing, tools, food, and riding essentials. Waterproof construction and a roll-style closure help protect your gear from rain and road spray. Secure straps, anti-slip contact areas, and a streamlined shape help keep the load stable behind your saddle.

Key Features

• 5L, 10L, and 13L size options for different riding needs
• Waterproof material and seamless construction help protect packed gear
• Adjustable compression straps help reduce movement while riding
• Reflective detailing and rear light attachment improve low-light visibility

Why Choose Our 5L–13L Waterproof Bike Saddle Bag?
Unlike small bicycle seat bags, this expandable design provides room for longer rides while mounting directly beneath the saddle. External elastic storage and secure attachment points add versatility without requiring a rear rack.

Perfect For
Bikepacking, MTB rides, road cycling, touring, commuting, weekend trips, and medium-to-long-distance rides.

Product Specs
Capacity: 5L / 10L / 13L
5L: 41 × 15 × 11 cm
10L: 47 × 15 × 16 cm
13L: 58 × 20 × 16 cm
Material: Waterproof PVC mesh fabric

Pack More for the Road Ahead
Choose the capacity that fits your adventure and enjoy secure, weather-ready storage without the bulk of a backpack.