Ultralight Sub-Zero Winter Sleeping Bag

Stay warm through your winter adventures without hauling excess weight. This ultralight sleeping bag merges cutting-edge insulation technology with expedition-ready portability. Packed with 1100g of premium synthetic down, it traps heat efficiently in sub-zero temperatures while the intelligent baffle-box construction eliminates cold spots. The reinforced 20D nylon shell and lining shield you from moisture and abrasion, ensuring durability season after season. At just 3.97 lbs. it compresses to a remarkably compact 3.94 inches—perfect for minimalist backpackers and mountaineers. Unfold it to a generous 76.7 x 31.5 inches of sleeping space. Whether you're tackling alpine peaks or remote winter trails, this sleeping bag delivers the warmth and packability serious adventurers demand.

Specification & Details

• Dimensions: 76.78 in. * 31.50 in. * 3.94 in.
• Weight: 3.97 lbs 
• Open size: 195x80cm/76.7x31.5inch 
• Shell: 20D Nylon 
• 100%Lining: 20D Nylon 100%
• Filling: fake down 1100g
• Total weight: 1800g
• Construction: baffle construction

Ideal For

• Cold-weather campers, winter backpackers, mountaineers, and anyone braving below-freezing nights

• Adventurers who value warmth, lightweight gear, and premium performance

Cold Nights Don’t Stand a Chance

At Brookside Outfitters, we know the right gear makes all the difference. This cold-weather sleeping bag is your go-to for warmth, packability, and trusted comfort in extreme conditions — so you can rest, recharge, and get back out there.