Ultra lightweight pack sack with roll closure and compression straps. This ultra-light compression saddle bag is ideal for waterproof packaging away from clothing and sleeping bags in not waterproof luggage such as stitched rucksacks or panniers. Thanks to the integrated valve and 4 straps you can mount this luggage compresses extremely small. On the pack sack with roll closure Can be turned up valve excess air out of the bag is open to escape. With the help of the 4 straps compress the pack sack can also be stored. The closing the valve to the compression process while keeps your vacuum. So that there is no space as a gift excess volume or transport. To empty hold the open the valve and it bag first to the loop on bottom and equipment retrieval.