The Uberlight CTF3 DrySack by Granite Gear. We pride ourselves on continual improvement, but it is going to be tough to make a lighter sack than this without utilizing some sort of antigravity technology. Absurdly light-less than ½ the weight of a comparably sized sil nylon sacks, these roll top bags are waterproof, and have 3X the tensile strength of sil nylon. Made of a material originally used as sailcloth on World Cup sail boats, the Überlight CTF3 sacks set the bar for ultralight storage.

DECENT FEATURES of the Granite Gear Uberlight Drysack

• 70 D Nylon Ripstop for greater abrasion resistance
• Waterproof rolltop closure
• Lightweight and PVC free
• Hot-Weld taped seams
• Rolling stay helps for holding sack open while loading
• Space saving shape

The SPECS for 7 Liters

• Dimensions: 4 1/2" x 7" x 17"
• Weight: 51 grams / 1.8 ounces

• Dimensions: 5" x 7 1/4" x 20"
• Weight: 54 grams / 1.9 ounces

• Dimensions: 5 1/4" x 7 3/4" x 21"
• Weight: 58 grams / 2.0 ounces

• Dimensions: 6" x 8 3/4" x 22 1/2"
• Weight: 77 grams / 2.7 ounces

• Dimensions: 7" x 10" x 25"
• Weight: 86 grams / 3.0 ounces

• Dimensions: 8" x 11" x 27"
• Weight: 94 grams / 3.3 ounces