The Air Stream is Sea to Summit's big-volume sleeping mattress pump, it's based on its 20L Ultra-Sil Nano Dry Sack, with added valve plug and foot loop. The 20 liter Air Stream can be inflated with a single breath. Two to three cycles from the Air Stream are enough to fill Sea to Summit 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 20L Air Stream can be inflated with a single breath. Two to three of these inflation cycles is enough to fill any Sea to Summit sleeping mat.
Oval base design with foot loop.
Fully seam sealed with sealable valve plug.
Made from lightweight 15D UltraSil.