Osprey Ultralight 12L Waterproof Dry Sack - Blue, Rectangular Packable Roll-Top with D-Ring

The Osprey Ultralight 12L Waterproof Dry Sack is a compact, rectangular roll-top dry bag that protects and organizes your gear inside packs or luggage while remaining superlight and pack-efficient.

Designed to blend low weight with practical organization, this 12-liter dry sack from Osprey uses waterproof-coated fabric and taped seams plus a roll-top closure to resist splashes and rain (IPX5-rated). Its rectangular profile maximizes usable volume and slides neatly into backpacks, duffels, or suitcases, and the integrated D-ring lets you hang it to dry or clip it inside a larger pack. At approximately 13.8 x 8.7 x 6.7 inches and weighing just a few ounces, it’s an unobtrusive way to keep clothes, electronics, or toiletries separate and dry on outdoor trips and everyday travel.

How does the Osprey Ultralight 12L keep items dry on wet days?

The dry sack pairs a roll-top waterproof closure with a waterproof-coated shell and sealed seams to block rain and spray. While it’s not designed for prolonged submersion, the IPX5 rating ensures protection against water jets and heavy showers.

• Roll-top closure compresses air and seals the opening
• Waterproof-coated fabric plus taped seams resist penetration
• IPX5 rating suitable for rain, spray, and splash exposure
• D-ring allows hanging up to dry after wet use

Will this 12L shape fit well inside my backpack or suitcase?

The Ultralight 12L is intentionally rectangular to make packing more efficient than round dry bags. The boxy proportions sit flush against pack walls and stack neatly with other items, reducing wasted space and shifting during movement.

• Rectangular dimensions optimize internal packing space
• Slim profile fits alongside sleeping bags or clothing layers
• Lightweight construction keeps overall pack weight low

What can I realistically store in a 12-liter Osprey dry sack?

A 12-liter volume is versatile for day trips or as a sub-organization piece inside larger luggage. It comfortably holds a change of clothes, a compact rain jacket, toiletries, or small electronics in protective separation from damp gear or spills.

• Change of clothes or base layers for day hikes
• Toiletry kit and small hygiene items without leaks mixing
• Tablet, cables, and battery banks kept dry from moisture
• Camera accessories or foodstuffs separated inside a main pack

How durable and travel-ready is this dry sack for regular use?

Osprey built this Ultralight sack for repeated packing and outdoor use by combining coated fabric with reinforced seams and a secure roll-top closure. The included D-ring adds practical attachment points for carabiners or a clothesline, extending usefulness beyond just storage.

• Light but robust shell resists abrasion inside packs
• Taped seams reduce the chance of seam leakage over time
• D-ring for hanging, fastening, or drying between uses
• Available in multiple volumes and colors for organized packing systems

Who is this for: The Osprey Ultralight 12L Waterproof Dry Sack suits day hikers, minimalist campers, bike commuters, and travelers who want a low-weight way to keep essentials dry and organized. It’s also a good choice for anyone who prefers rectangular packing solutions that fit cleanly into backpacks or luggage and for users who want color-coded organization across different gear sizes. If you need protection from rain, splash-resistant storage, and a compact, pack-friendly shape without adding bulk, this dry sack covers those needs simply and efficiently.