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ThermARest BlockerLite™ Pump Sack

Availability: In stock (3)

For lightning-fast inflation and water protection, the BlockerLite Pump Sack gives you a versatile and lightweight option for gear storage and mattress inflation.

Designed with their friends at SealLine, the pump sack features durable and welded seams. Big enough to hold 20-liters of gear, it’s the perfect size to store extra clothing before inflating a high-volume air pad that features the WingLock or TwinLock valve.

Timesaving: Inflates your pad faster than breath inflation. Easily snaps onto Therm-a-Rest valves.
SealLine® Protection: Built with ultralight waterproof BlockerLite™ material from our pals at SealLine, this dry sack is extra durable and features welded seams to keep your gear protected.
Versatile: Doubles as a lightweight 20-liter dry sack when it’s time to hit the trail.


  • Size:20 L
  • Color:Green
  • Weight (Standard):5 oz
  • Weight (Metric):0.15 kg
  • Width (Standard):5.5 in
  • Width (Metric):14 cm
  • Length (Standard):10 in
  • Length (Metric):26 cm
  • Height (Standard):24 in
  • Height (Metric):61 cm
  • Packed dimension (Standard):6 in x 6 in x 1 in
  • Packed dimension (Metric):15 cm x 15 cm x 2.5 xm
  • Top fabric type:20D Rip Nylon
  • What's Included:NA
  • Material(s):Polyester
  • Country of Origin:Made in China


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