Stone Glacier Grumman Goose Down Pant – 850+ Fill, HyperDRY, Granite Grey, Small

Purpose-built warmth for backcountry days

Designed for cold, static conditions and long glassing sessions, the Stone Glacier Grumman Goose Down Pant balances warmth with mobility. Built around 850+ fill power HyperDRY down and a lightweight 15 Denier Pertex Quantum shell, these pants deliver a strong warmth‑to‑weight ratio without adding unnecessary bulk. They’re crafted to layer smoothly under rain gear, so you can stay comforted as conditions shift through the day.

Insulation and materials

The pant uses 4.2 oz of down insulation that is 100% traceable and RDS certified, pairing loft with responsible sourcing. HyperDRY treatment helps preserve loft in damp air, while the shell sheds light moisture to keep you comfortable from first light to late dusk.

• High-loft warmth with a light, compact profile
• RDS-certified HyperDRY down for reliable loft in damp environments
• Durable 15 Denier Pertex Quantum shell keeps weight down without sacrificing protection

Design and mobility

A full-length YKK zipper allows easy on/off and generous venting, while a slim waistline supports layering over base and midlayers. The included stuff sack compresses the pants to a compact footprint, helping them disappear in your pack until you need them.

• Full-length zippers open fully for easy layering and ventilation
• Slim waistline designed to work with layered systems
• Stuff sack offers compact packing for trips and hunts

Real-world use scenarios

Imagine a frosty ridge during a long glassing session, or a still, cold day on a backcountry hunt. The Grumman Goose Pant stays warm beneath a rain shell and remains comfortable when you pause to scan terrain. It’s designed to excel as a base or mid-layer in changing weather and pairs well with additional outerwear for extra protection.

Care and ethics

All down is traceable to responsible sources, and HyperDRY treatment helps maintain loft across wear cycles. Built for rugged, outdoor use, these pants aim to deliver dependable warmth and durability while keeping a light profile in your pack.