Doubling as a stuff sack, the Sea to Summit Jet Stream Pump Sack employs a “concertina action” to make the inflation of a Sea to Summit sleeping pad (sold separately) highly efficient and keep potentially damaging moist air from reaching the interior of the mat.
On each up stroke, multiple one-way intake ports pull air into the interior of the pump and on the down stroke air is directed through a valve plug and into the sleeping pad at a volume that mirrors a lung’s worth of inflation.
The 30D Ultra-Sil construction is surprisingly durable and allows the pump sack to weigh in at a mere 1.5 ounces. A roll-top closure enables the pump to serve as a stuff sack for clothes, gear, or even the sleeping pad. NOTE: It will not accommodate any sleeping pad with a packed size that exceeds the 8.7” x 3.9” x 1” dimensions of the Jet Stream Pump Sack.
- Lightweight TPU base has finger loops to hold pump on to mattress
- Roll top closure can be used as hand strap
- One-way air intake ports surround center valve plug output
- Made from 30D Ultra-Sil
Item Weight 1.5 oz Dimensions 3.9" x 8.7" Warranty Limited Lifetime Type Stuff Sack/Sleeping Pad Pump Capacity 104 cu in (1.7L) Material 30D Ultra-Sil
Real Customer Reviews
- Better than nothing
Likes: This fits in the bag with my Sea to Summit SI mattress. It does the trick, keeps moisture out. I don't want spit and chunks of dinner getting blown into my mattress.
Dislikes: This takes quite a few pumps to top off a self-inflating mattress. I should have spent the extra few dollars for the larger version.
- Lightweight and efficient
Likes: -this thing works really well if you use it correctly. Pumps up my Sea to Summit Comfort Light (the blue one) to the max in about a minute and a half
-doubles as a storage bag for either the blue or yellow Sea to Summit pads
-packs down very small, self-containing if you're not using it as a storage sack
Dislikes: -too small to use as a storage bag for any pad larger than the blue Sea to Summit pad
-does take a little practice to use correctly
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