The AMK Compression Dry Sack is the best dry sack you will ever buy!
 
It is built to the same specifications as it's more famous Sea to Summit cousin.
 
BUT WITH A MUCH BETTER PRICE! Plus, if you buy 4 you get the 5th for FREE!!! 
 
Use the coupon code: 5THBAGFREE

Durable and versatile, you can put your sleeping bag, tent and clothes in this bag with confidence! Whether you are Kayaking, Camping, or Hiking, your stuff will stay dry!
 
Specifications:
 
Available Sizes: Small - 10L & Medium - 20L
Top & Body Fabric - 70D Nylon
Bottom Fabric - 40D Nylon Air Permeable
Seams - Reinforced Double Stitched & Waterproof
Pull Straps - Triple Stiched
Closure - Roll up
NOTE: If you are kayaking, make sure you buy a size that fits through your hatch. 
20L is 9inches wide
10L is 6 inches wide