The Grumman Down Jacket delivers exceptional packability, warmth, and protection for the backcountry hunter in a truly ultralight package.
Built with a Pertex® Quantum shell and insulated with HyperDRY® 850+ Fill Power DWR-treated goose down, it remains one of the lightest and most technically advanced down hunting jackets available. This
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Really weird fit but if it’s as warm as your sleeping bags it’ll be just fine. None of your jackets or sweatshirts ever fit me that great. I’m between large and xl. Not thick enough for the XL but too tall for the L. I’m just your average 6ft tall 200lb guy with shoulders and chest bigger than my belly so the large kinda small. But the XL is tight in the shoulders but too big in the belly. I’m only going to be wearing it when glassing or cleaning snow off my truck so it’ll be just fine.
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Robert · August 26, 2026
Best Puffy Ever
This is the best warmth for the weight. It needs to be wore under a shell as it is not durable outer shell