Vortex Waterproof Bolt-On 1L Top Tube Bag

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Rugged, waterproof, and versatile, the Vortex Bolt-On Top Tube Bag is a solid choice for cyclists who value accessibility and durable performance on the road.

Altura says: 

Retaining it’s best features this popular waterproof top tube bag now offers a ‘bolt on’ fitting option for greater flexibility when mounting on the bike.

The Altura Vortex Waterproof Bolt On Top Tube is an improved and updated version of our ever popular model. It now includes useful pre-punched holes that allow you to bolt the bag directly onto your bike’s top tube or it can be attached using the removable straps that are supplied.

Your belongings will be well protected thanks to the reinforced sides and base whilst the waterproof, welded seam construction will help to keep them dry if the weather takes a turn for the worse. The handy 1 litre capacity includes an internal pocket for smaller items whilst the cable port keeps things neat and tidy.

Our Verdict

The Altura Vortex Waterproof Bolt-On 1L Top Tube Bag is a well-designed, compact, easily accessible storage on the bike. With the option to either bolt it directly to the top tube or attach it via removable straps, this versatile bag can adapt to various setups, making it ideal for day trips and longer bikepacking adventures.

With a 1-litre capacity, it’s spacious enough for essentials like snacks, multi-tools, electronics, and battery packs, while the internal pocket helps keep smaller items organised. The bag’s reinforced sides and base ensure it holds its shape, and the welded seam construction provides excellent water resistance. The secure closure and handy cable port further enhance its functionality, keeping cables and small devices neatly managed.

– Reviewed by Ultralight Outdoor Gear

Features

• Waterproof, Welded Seam Construction
• Can be bolted directly to the frame
• Nylon ripstop fabric with TPU coating
• Cable port
• Removable straps
• Secure zipped lid closure
• Reinforced sides and base
• Internal pocket

Specifications

• Weight: 127g
• Capacity: 1L (approx)
• Dimensions (cm): 25 x 10.5 x 5.5

Material & Construction

• Nylon ripstop fabric with TPU coating