With integrated valve and foot loop, the Sea to Summit Air Stream Dry Sack allows you to easily fill your Sea to Summit sleeping matt quickly, and with minimal breath condensation.

• Based on a 20 L Ultra-Sil Nano Dry Sack
• Inflates most sleeping mats in only two or three compressions
• Fully seamed sealed, with a sealable valve plug
• Doubles as a dry sack or pack liner when not in use as a pump