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***Stone Glacier products are designed with an athletic fit to provide its users with the highest performance possible in the field. Please use the sizing tab to help guide you to the correctly sized garment***
The Stone Glacier Grumman Down Jacket delivers premium warmth, weather resistance, and exceptional packability in an ultralight insulation layer made for demanding backcountry hunts. Insulated with 850+ fill power HyperDRY® DWR-treated goose down and protected by a wind-resistant 15D Pertex® Quantum shell, it provides an outstanding warmth-to-weight ratio without adding unnecessary bulk. An updated micro-ripstop face fabric with a matte finish offers improved durability and quieter performance in the field, while subtle fit refinements enhance comfort and layering. The articulated hood, streamlined internal cuffs, elastic hem, and reverse-coil YKK® zippers help seal in warmth, and the internal pocket doubles as a stuff sack for compact storage when it's time to keep moving.
| Weight | 13.6 oz (Size Large) |
| Material | 15 Denier Pertex Quantam Shell |
| Water Proof | Water Repellent Finish Water Repellent Down |
| Insulation Type |
850+ Goose Down |
| Fill Weight | 5.3 oz |
| Manufacturer Warranty | Lifetime warranty on materials and workmanship |
| Size | Chest | Sleeve |
| Small | 35" - 38" | 33" |
| Medium | 38.5" - 41" | 34" |
| Large | 41.5" - 44" | 35" |
| X-Large | 44.5" - 47" | 36" |
| XX-Large | 47.5" - 50" | 37" |
| XXX-Large | 50.5" - 53" | 38" |
How to measure:
| Chest Measurement | With your arms relaxed at your sides, measure around the fullest part of your chest, keeping the tape snug but not tight. |
| Sleeve Measurement | With your arm relaxed and slightly bent, measure from the center of your back at the base of the neck, across the shoulder, to the elbow and down to the wrist. |
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