Vortex Waterproof Dropper 7L Seatpack

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A durable, waterproof seatpack with dropper post compatibility and quick-release convenience, the Altura Vortex 7L is perfect for off-road explorers needing secure and versatile storage.

Altura says: 

Ideal for serious off road adventures this seatpack is dropper post compatible, with a rixen kaul quick release klickfix system.

Answering the needs of stability, versatility and quick release, the Altura Vortex Dropper Seatpack has it all. A specially engineered Rixen Kaul Klickfix fitting embedded into the welded waterproof construction provides an easy to remove and attach carry solution which keeps the valuables protected from the elements whatever the weather. The roll closure and bungee cord features also allow for the Altura AnyWhere Drybags to be attached increasing carry capacity for different adventures. Max load including bag 2kg.

Please note the roll closure must be rolled 3 times to ensure a waterproof closure. Whilst the waterproof fabric and welded seams provide protection from the elements, this product is not submersible and should not be left sitting in water. We recommend valuables or electronics should be secured in a dry bag inside the main body of the bag for extra security.

This Rixen Kaul Klickfix system has been designed to work in combination with most dropper seat post configurations however we recommend checking sizing and clearance before use.

Our Verdict

The Altura Vortex Waterproof Dropper 7L Seatpack is designed for serious off-road adventures, offering dropper post compatibility and a quick-release system for added convenience. Weighing 701g, it provides a 7-litre capacity, making it ideal for multi-day bikepacking trips. The Rixen Kaul Klickfix system allows for quick and secure attachment, ensuring the pack stays stable even on rough terrain, while the waterproof, welded seam construction keeps your gear dry.

The roll-top closure and bungee cord offer flexibility in adjusting the volume, and the pack is compatible with Altura Anywhere drybags for additional storage. Reflective details and light attachment points enhance visibility, making this pack practical and safe for extended adventures.

– Reviewed by Ultralight Outdoor Gear

Features

• Waterproof, Welded Seam Construction
• Bungee Cord For Extra Storage
• Adjustable Volume Via Roll Closure
• Reinforced Inner
• Reflective Detail
• Light Attachment Points

Specifications

• Weight: 701g
• Capacity: 7L
• Dimensions (cm): 58 x 20 x 19 (rolled closed)
• Max Weight: 2kg

Material & Construction

• Nylon ripstop fabric with TPU coating