This lightweight compression sack reduces sleeping bags and other stuffables to a pack-friendly size; the Outdoor Research Ultralight Compression Sack features silnyl fabric that resists moisture and slides into your pack with ease. A pocket in the end cap keeps track of small items or can be used for self storage.
Formerly known as Helium Compression Sacks™
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Outdoor Research Sizing Chart
| Dimensions | Volume | Average Weight | ||||
|---|---|---|---|---|---|---|
| #1 | 17 5/8 x 6in | 45 x 15cm | 498 cu in | 8.2 liters | 2.4oz | 68g |
| #2 | 20 1/8 x 7in | 51 x 18cm | 775 cu in | 12.7 liters | 2.9oz | 82g |
| #3 | 22 5/8 x 8in | 57 x 20cm | 1137 cu in | 18.6 liters | 3.5oz | 100g |
| #4 | 25 1/4 x 10in | 64 x 25cm | 1983 cu in | 32.5 liters | 4.5oz | 127g |
| #5 | 27 1/4 x 11in | 69 x 28cm | 2590 cu in | 42.4 liters | 5.4oz | 154g |
| #6 | 29 x 13in | 74 x 33cm | 3849 cu in | 63.1 liters | 6.2oz | 177g |
| Dimensions | Volume | Average Weight | |||
|---|---|---|---|---|---|
| 5L | 11 5/8 x 6in | 30 x 15cm | 305 cu in | 2.4oz | 68g |
| 10L | 14 1/8 x 7in | 36 x 18cm | 610 cu in | 2.9oz | 82g |
| 15L | 16 5/8 x 8in | 42 x 20cm | 915 cu in | 3.5oz | 99g |
| 25L | 19 1/4 x 10in | 49 x 25cm | 1526 cu in | 4.5oz | 128g |
| 35L | 21 x 11in | 53 x 28cm | 2136 cu in | 5.4oz | 153g |
| 55L | 23 x 13in | 58 x 33cm | 3356 cu in | 6.2oz | 176g |
| Dimensions | Volume | Average Weight | |||
|---|---|---|---|---|---|
| 10L | 20 1/2 x 7in | 52 x 18cm | 610 cu in | 8.1oz | 228g |
| 15L | 23 x 8in | 58 x 20cm | 915 cu in | 8.3oz | 234g |
| 25L | 25 1/2 x 9in | 65 x 23cm | 1526 cu in | 9.2oz | 259g |
| 30L | 28 x 10in | 71 x 25cm | 1831 cu in | 10.2oz | 289g |
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