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Deal.ai › Sea to Summit › Pack Sacks
Sea to Summit
Sea to Summit Lightweight Compression Sack 20l

Sea to Summit Lightweight Compression Sack 20l

Best price now

$29.96at Dick's Sporting GoodsChecked 11 h ago

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Price facts

  • Lowest price today: $29.96 at Dick's Sporting Goods (checked Nov 14, 2026).

Our take on the Sea to Summit Lightweight Compression Sack 20l

A 20-liter nylon stuff sack that compresses bulky gear and keeps it dry. The roll-top closure and taped seams make it a dry sack as well as a compression sack, which is more than most plain stuff sacks offer. At about 2 ounces it adds almost nothing to a pack. It suits backpackers, bikepackers and paddlers packing a sleeping bag, puffy jacket or spare clothes. Rivals like the Osprey Ultralight or Granite Gear sacks compress well but are not waterproof; this one does both.

Best forBackpackers packing a sleeping bag or puffyBikepackers and paddlers needing dry storageUltralight travelers cutting pack weightCampers keeping clothes dry in rain
Pros
  • Waterproof roll-top closure with taped seams
  • Compresses bulky insulation to a fraction of its size
  • Very light for its volume
  • Nylon fabric resists abrasion inside a pack
  • Doubles as a dry sack, so fewer bags to carry
Cons
  • Thin fabric needs care around sharp gear
  • Roll-top closure takes a few extra seconds to seal
  • No valve, so trapped air must be squeezed out by hand
  • Compression straps can bunch fabric if pulled unevenly

Sea to Summit Lightweight Compression Sack 20l prices at every store

  • Dick's Sporting GoodsNew

    In stock

    $29.96+ $9.99 shippingChecked 11 h ago
    Visit Dick's Sporting Goods

Store links may earn us a commission. Price via Klarna.

Sea to Summit Lightweight Compression Sack 20l price history

Lowest price we've seen: $29.96 on Nov 14 at Dick's Sporting Goods. Tracked across 1 store since Nov 14.

What reviewers say

Owners rate it as a dependable, featherweight dry bag that compresses well. Most praise the weight and waterproofing; some wish the fabric were tougher and the closure quicker.

What people mention
  • WeightPraisedOwners say it adds almost nothing to a pack.
  • WaterproofingPraisedReviewers report gear staying dry in rain and splash.
  • CompressionPraisedUsers say it shrinks a sleeping bag or jacket substantially.
  • Fabric durabilityMixedSome find the nylon thin and worry about snags and punctures.
  • ClosureCriticisedA few find the roll-top slower and fussier than a simple drawstring.

About the Sea to Summit Lightweight Compression Sack 20l

The Sea to Summit Lightweight Compression Sack is a 20 L pack sack that works as both a compression sack and a dry sack. It is made from nylon (polyamide) and is waterproof.

It weighs 0.134 lb.

Type
Compression sack, dry sack
Capacity
20 L
Material
Nylon, polyamide
Waterproof
Yes
Dimensions
22 in wide x 47.5 in high x 24 in deep
Weight
0.134 lb
Colors
Green, Brown

Specifications

Width (")
22.0Source
Waterproof
YesSource
Color
Green, BrownSource
Volume (gal)
20.0Source

Questions and answers

Is it actually waterproof?
Yes. It uses a roll-top closure and waterproof fabric with taped seams, so it works as a dry sack, not just a stuff sack.
What fits in 20 liters?
A sleeping bag, a puffy jacket plus layers, or a change of clothes for a multi-day trip. It is a mid-size sack, not for a whole pack's contents.
How does it compare with a plain stuff sack?
It compresses gear the same way but also keeps it dry. Plain ultralight stuff sacks are slightly lighter but offer no water protection.
Does it have a valve to release air?
No. You squeeze air out by hand before rolling the top down, which takes a little longer than a valve-equipped dry bag.
Is it tough enough for sharp gear?
The nylon is light and abrasion-resistant inside a pack, but keep tools and sharp edges away from it or use a tougher sack for those.
Where is the Sea to Summit Lightweight Compression Sack 20l cheapest?
At Dick's Sporting Goods, for $29.96, as of our latest check.

Stores we've priced the Sea to Summit Lightweight Compression Sack 20l at

  • dickssportinggoods.com deals and prices

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Height (")
47.5Source
Type of Pack Sack
Compression Sack, Dry SackSource
Depth (")
24.0Source
Material
Nylon, PolyamideSource
Weight (lb)
0.134Source
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