The Air Stream Pumpsack is a versatile, easy to use and ultralight mattress pump that also doubles as a 20 litre dry sack.
Sea to Summit says:
The Air Stream is our big-volume sleeping mattress pump, it's based on our 20L Ultra-Sil Nano Dry Sack, with added valve plug and foot loop. The 20 Litre Air Stream can be inflated with a single breath. Two to three cycles from the Air Stream are enough to fill most sleeping mats, so you're ready to go quickly, with minimal breath condensation in your mat or dizziness from blowing the mat up. The Air Stream can be used as a 20L dry sack or ultralight pack liner.
The AirStream Pumpsack is a high volume sleeping mattress pump which also doubles as a 20 litre dry sack. Pumpsack! It's easy to use as a mattress pump as all you need to do is open the base flap and connect the sleeping mat valve to the connection point. Blow into the bag, roll down the top seal and push the air into the mat. Do this 2 or 3 times then hey presto your mat is inflated. You can then use the bag as a dry sack or bag liner by closing the flap on the base.
- Reviewed by Ultralight Outdoor Gear