Big Agnes Greystone 30F / -1C Sleeping Bag

The Big Agnes Greystone 30F sleeping bag delivers everything serious backpackers need for three-season adventures without the premium price tag. This lightweight mummy sleeping bag features 600 fill DownTek™ insulation that maintains its loft and warmth even when moisture tries to crash the party, while the PFAS-free water-repellent treatment keeps you dry without harmful forever chemicals. The traditional mummy shape and contoured hood work together to trap your body heat efficiently, making every gram count on the trail, while the smooth YKK two-way zipper lets you fine-tune ventilation from your toes up. Whether you're logging miles on remote trails or need a reliable backup for indoor adventures, this sustainable sleeping bag proves that eco-conscious gear doesn't mean compromising on performance when temperatures drop to 30°F/-1°C.

Features

• DownTek™ water-resistant down insulation maintains loft and warmth even when exposed to moisture
• PFAS-free water-repellent treatment provides protection without harmful forever chemicals
• Traditional mummy shape maximizes thermal efficiency while minimizing weight
• Contoured hood with insulated tube follows head shape for comfortable fit and heat retention
• Anti-snag YKK zipper with two-way operation allows foot venting for temperature regulation
• Oversized no-draft collar and zipper garage prevent heat loss at critical areas
• Compatible mating system allows left and right zip bags to connect for shared warmth
• Sustainably manufactured with recycled polyester shell and lining fabrics