Vortex Waterproof 12L Seatpack

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A robust, waterproof seatpack with ample storage and thoughtful features, the Altura Vortex 12L is ideal for bikepackers looking for reliable and spacious gear protection.

Altura says: 

Essential to any bike packing adventure, our waterproof seat pack range has welcome updates including improved stability and cushioning.

Gear up for any adventure with the Altura Vortex Waterproof 12L Cycling Seat Pack. Constructed with waterproof, welded seams and durable nylon ripstop fabric with TPU coating, this pack keeps your essentials dry in all weather.

The adjustable roll closure and reinforced inner structure ensure a custom fit and protect against seat post crush. Features include extra storage with a bungee cord, compatibility with Altura Anywhere drybags, reflective details for enhanced visibility, and light attachment points for added safety.

Ideal for cyclists seeking a reliable, versatile, and high-performance seat pack.

Our Verdict

The Altura Vortex Waterproof 12L Seatpack is a reliable option for bikepacking adventures. Its 12-litre capacity and durable waterproof construction offer plenty of storage. Weighing 501g, it’s made from tough nylon ripstop fabric with a TPU coating and features welded seams to keep your gear dry in wet conditions. The adjustable roll closure allows for a customised fit, while the reinforced inner structure protects against gear being crushed by the seat post.

A bungee cord provides extra storage, and the pack is compatible with Altura Anywhere drybags for even more capacity. Reflective details and light attachment points help maintain visibility on the road. This pack is perfect for cyclists seeking a versatile, weatherproof solution for multi-day trips.

– Reviewed by Ultralight Outdoor Gear

Features

• Waterproof, welded seam construction
• Nylon ripstop fabric with TPU coating
• Compatible with Altura Anywhere drybags
• Adjustable volume via roll closure
• Reinforced inner to prevent crushing against the seat post
• Reflective detail
• Light attachment points

Specifications

• Weight: 501g
• Dimensions (cm): 44 x 20 x 20
• Capacity: 12L

Material & Construction

• Nylon Ripstop with TPU (thermoplastic polyurethane membrane) coating