Aonyx 25 Spec Sheet
Aonyx 25
Waterproof. Tough. Everyday.
A 25-litre waterproof roll-top backpack with a fully welded main compartment, a padded 13" laptop sleeve and a comfortable, lightweight carry. Built for everyday use in wet weather, from day hikes and dog walks to cycling and the commute.
| Capacity | Approx. 25L (we recommend 2 to 3 rolls) |
|---|---|
| Dimensions | 46 × 30 × 18 cm (H × W × D), loaded, 2 rolls |
| Weight | Approx. 1.1 kg |
| Main body | 500D PVC tarpaulin, fully welded seams |
| Laptop sleeve | Padded, fits up to 13" (25 × 30 cm) |
| Colours | Forest Green · Stealth Black · Sandstone |
01Colours
Three colourways, same spec.
02Specification
Construction
- Heavy-duty 500D PVC tarpaulin main body
- Fully welded seams, waterproof up to the closure
- Keeps water, dirt and sand out
Capacity & closure
- Approx. 25L main compartment (we recommend 2 to 3 rolls)
- Roll-top clips together over the top
- Or use the side straps to secure the roll-top down to the sides
Internal organisation
- Padded laptop sleeve, 25 cm wide × 30 cm deep (fits up to 13")
External storage & visibility
- Front zip pocket with water-resistant zip (not waterproof)
- Elasticated front webbing
- 2 exterior bottle pockets (bottles up to 8 cm diameter)
- Full-width compression strap at the top
- Side compression straps at the bottom
- Reflective detailing for night-time visibility
Carry & comfort
- Padded shoulder straps, each with a D-ring
- Sternum strap with emergency whistle
- Padded foam back panel with airflow channel
- Top carry handle
03Features at a glance
04Dimensions
| Height | 46 cm |
|---|---|
| Width | 30 cm |
| Depth | 18 cm |
| Capacity | Approx. 25L |
| Weight | Approx. 1.1 kg |
| Laptop sleeve | 25 × 30 cm (W × D), fits up to 13" |
| Bottle pockets | Up to 8 cm diameter |
Measured fully loaded with 2 rolls
05Inside

Unlike most roll-tops, the Aonyx 25 has a padded laptop sleeve inside, holding a laptop up to 13" (25 cm wide × 30 cm deep). Smaller items you need quickly can go in the front zip pocket on the outside.
That makes it as at home on the commute as on the hill, with the waterproof roll-top keeping everything dry on the way.
06In the field
Walking, hiking, cycling, water sports, festivals and the daily commute.
19 days on the river with Ed Pratt. Read the expedition story.




07Good to know
Waterproofing
The main compartment is waterproof up to the roll-top closure. The front zip pocket is water-resistant only, and the bag is not rated for submersion. Keep electronics in a suitably IP-rated case inside the bag.
Aonyx 25 or Caiman?
Choose the Aonyx 25 for everyday carry and electronics, with its padded laptop sleeve. Choose the Caiman 30 or 40 for heavier loads and more external carry. Read the comparison.
Care
- Rinse off dirt or salt with fresh water
- Dry thoroughly before storing


