The Exped Cloudburst is a roll top dry bag that also has a set of rucksack straps allowing it to be used as a pack.
Waterproof lightweight pack with roll-top closure. The Cloudburst 15 is the perfect combination of a waterproof packsack and a versatile lightweight pack. Ideal for summiting Himalayan peaks, walking through jungles, or as a backup daypack or shopping bag. The 15 l volume holds plenty of gear and keeps contents dry under all conditions.
Volume: 15 l
Size (closed): 16.54 × 7.09 × 5.91 in
Weight: 9 oz
Backlength: One size
Load Limit: 11 lb
Water Resistance: Waterproof
Intended use: Climbing, Globetrotting, Daypack/day trips, Watersport
Warranty: 5 years
I have been using a couple of 15L Exped Cloudbursts for the last couple of years.
They have primarily been used for storing emergency kit in either my kayak or car. The 15L version allows me to get plenty of warm kit, first aid kit and spares with ease with the advantage of keeping it all dry and the ability to use at as a rucksack if required. To date the Cloubursts have been holding out the water really well. The pack has been stuffed in the back of my kayak for multiple trips, been used on a raft and even on a little wild swimming adventure. Each and every time my kit has remained dry.
Now the packs are not made from the most heavy duty material available. They are not at the same sort of level as say Ortlieb packs in terms of fabric weight, but I have found them capable of taking a beating and still capable of more. After such a long and tough period of use I am really pleased with the performance an durability of the Exped Cloudburst and plan to continue using them until they final give up the ghost.