Big Agnes Greystone 30

The Big Agnes Greystone 30° Mummy Sleeping Bag combines lightweight warmth, packability, and sustainability—making it a top choice for backpacking in Rocky Mountain National Park or camping near Estes Park. Featuring 600-fill DownTek™ water-resistant insulation and a mummy shape for thermal efficiency, the Greystone keeps you warm even when conditions get damp. Built with recycled fabrics and a water-resistant shell, it delivers reliable performance while reducing environmental impact.

Whether you’re backpacking, road tripping, or crashing at a friend’s house, this versatile bag provides comfort and warmth at an approachable price point.

• 30°F temperature rating – reliable warmth for 3-season adventures.

• 600-fill DownTek™ insulation – down treated to resist moisture.

• Recycled shell & lining fabrics – eco-friendly construction.

• Water-resistant shell – repels condensation and light moisture.

• Traditional mummy shape – maximizes warmth retention.

• Lightweight & compressible – ideal for backpacking and travel.

• Versatile use – just as ready for camping as it is for couch surfing.