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Ultra-Sil Compression Dry Sack


Ultra-Sil Compression Dry Sack

$33.95-$53.95 $16.97-$26.97
Waterproof ultralight compression + View tech specs
  • Size
  • ColorGrey

BEST USE: Backpacking

WATERPROOF? The body of the dry sack is more than adequately waterproof (2000 mm hydrostatic head) for the intended use (storage inside a backpack or duffle).

DIMENSIONS: 5 x 10 inches

WEIGHT: 2 oz | 50g

Shipping & Returns

Our warehouse is actively shipping orders from 8am to 1pm MST Monday through Friday. Most orders ship in one business day, but the transit time can take up to 7 days, depending on your distance from Boulder, Colorado.

2nd Day and Next Day Air orders will ship same day if placed by 1pm MST, Monday-Friday (except holidays).

All orders are eligible for fast and easy returns within 60 days of purchase.

For more details, please check out our Help Center

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Ultra-Sil Compression Dry Sack
Ultra-Sil Compression Dry Sack


The Ultra-Sil Compression Dry Sack is a super lightweight dry sack designed to compress bulky clothing or other squishable gear that lives inside your pack. Made from Ultra-Sil 30D CORDURA® Nylon fabric with an eVent® fabric base, the air can be rolled out but can't get back in. It's an ideal option for use inside a backpack during longer lightweight hikes, cycle touring and any activity where you need to maximize pack space by compressing your bulky items to one-third of their volume. It employs waterproof seams, a hypalon roll-top, non-wicking closure and is super lightweight.

Design Details

Technical Features


Tech specs

  • Best Use
    Backpacking, Hiking & Bike Packing
  • Closure
    Waterproof roll-top closure with lid and compression straps
  • Material(s)
    Ultra-Sil nylon body and eVent fabric base
  • Measurement
    Length - measured with roll-top closure open Volume - measured with closure rolled 3 times
  • Repair Buckle Size
    5/8in | 15mm (2-Pin)
  • Shape
    Cylindrical with round base for easy packing
  • Waterproof
XXS / 3.3 literXS / 6 literS / 10 literM / 14 literL / 20 liter

Frequently Asked questions

Is this compression sack a good tent storage bag?

Perhaps. Carrying the tent canopy in your pack (with the poles under the compression straps) is a great idea. However - the canopy may not compress that much.

Is this compression sack worth the weight and cost?

Once you have experienced modular packing with ultralight compression sack you’ll wonder how you ever lived without them.

Is this compression sack waterproof?

The body of the compression sack is waterproof enough (2000 mm hydrostatic head) for use as storage inside a backpack or duffle.

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