Stone Glacier Grumman Goose Down Pant, Granite Grey, XX-Large | 850+ Fill HyperDRY, Full-Length Zippers

Overview

Experience warmth when the wind bites and the ground stays frozen. The Stone Glacier Grumman Goose Down Pant blends ultralight insulation with a compact shell to create a versatile cold-weather layer for backcountry hunters. The 850+ fill power HyperDRY down delivers impressive warmth for a feather-light feel, while the 15 Denier Pertex Quantum shell adds durability without bulk.

Designed for extended glassing sessions or static sits, these pants are built to be worn under rain pants when the weather shifts. They are easy to pull on or off thanks to full-length YKK zippers and a slim waist that layers neatly over or under other garments. The included stuff sack means you can compress them into a small corner of your pack, keeping weight distribution tidy on longer trips.

Why the Grumman Goose stands out

• 850+ fill power HyperDRY down offers warmth without excessive bulk, supporting a nimble backcountry kit
• 4.2 oz of insulation paired with 15 Denier Pertex Quantum shell for warmth-to-weight efficiency
• 100% traceable RDS certified down aligns with transparent sourcing practices and consistent performance

The HyperDRY treatment enhances water resistance, helping the pants stay warmer and drier as you move through damp brush or light precipitation. The full-length leg zippers can be opened for ventilation or completely opened to slide in or out over base layers, making adjustments quick during variable conditions. When packing, the pants fold down to a compact size and fit neatly into the included stuff sack, a handy feature for keeping your pack organized without adding noticeable bulk.

Practical ideas for use

• Warmth during long glassing sessions on cold, still days
• Layering under rain pants when conditions threaten moisture
• Ethically sourced insulation with a focus on traceability for conscious gear choices

In short, the Grumman Goose Down Pant is a thoughtful addition to a backcountry wardrobe: a lightweight yet capable layer that emphasizes warmth, versatility, and packing efficiency, without promising outcomes in every condition. Consider it as a possibility for staying comfortable during lengthy cold campaigns.