Airpurge Dry Compression Sacks™

Style# 37530OR

In addition to protection and durability, the updated AirPurge Dry Compression Sacks feature an air permeable/waterproof fabric band that purges excess air from the sack during compression. Fully taped seams and a roll-top closure provide complete water protection.






  • Durable
  • Lightweight
  • Fully Seam Taped
  • Waterproof Roll-Top Closure with Lightweight TPU-Coated Webbing
  • Air-Permeable Band Allows Evacuation of Air for More Complete Compression
  • Four Compression Straps
  • Durable Buckle Closure
  • External Daisy Chain
  • Webbing Handle on Bottom


Fabric: 100% nylon, 70D with TPU lamination main body // 100% nylon, 30D ripstop air release band

  • 5L: 15" x 5 1/2" / 38 cm x 14 cm
  • 8L: 18" x 6 1/2" / 46 cm x 17 cm
  • 10L: 21 1/2" x 7" / 55 cm x 18 cm
  • 15L: 24" x 8" / 61 cm x 20 cm
  • 20L: 25" x 9" / 64 cm x 23 cm
  • 35L: 29" x 10" / 74 cm x 25 cm
  • 5L: #37530
  • 8L: #37531
  • 10L: #37532
  • 15L: #37533
  • 20L: #37534
  • 35L: #37535
    VOLUME /
  • 5L: 305 cu. in.
  • 8L: 488 cu. in.
  • 10L: 610 cu. in.
  • 15L: 915 cu. in.
  • 20L: 1220 cu. in.
  • 35L: 2136 cu. in.
  • 5L: 3.2 oz / 92 g
  • 8L: 3.6 oz / 104 g
  • 10L: 4.5 oz / 130 g
  • 15L: 5.1 oz / 146 g
  • 20L: 5.7 oz / 164 g
  • 35L: 6.6 oz / 190 g

Avg. Weight (oz./g): 4.5oz / 130g (10L)

Customer Reviews

Great compression sack (Review by out there)

Ok, so its hard to get excited about a compression sack, right? This one is perfect. I was on a multi day kayak trip and needed UL and bomber waterproof. It is totally waterproof, super lightweight, and the air purge thru the yellow patch means that after you compress it down to a little ball, you can sit on it and make it flat and even more compressed. Its so simple and effective.

(Posted on 4/29/14)

Airpurge Dry Compression Sacks™ (Review by By Chuck)

I have a lot of OR compression sacks that I appreciate and never let me down. But I dislike that one. I bought it and went for a 4 days bicycle trip. I used it for compressing my sleeping bag (a lightweight down sleeping bag). It broke on the second morning. The buckles used for the compression straps are half the thickness of those used on my other bags, so it broke and I was left with an half compressed bag... The buckles may be lighter, but it won't do the job. That said, if was satisfied with the rest of the design, which is sensibly the same than my other sacks.

(Posted on 8/21/13)

Airpurge Dry Compression Sacks™ (Review by By ridged8)

The material, very thick and strong. It has a slick outer layer, which aids very well when loading a tightly packed hatch. The quality of the hardware, is what we've all come to love about Outdoor Research's products over the years.

(Posted on 2/12/13)

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