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#3 on this list
Super Down PRO Pant
KUIU
Best reinforced down overpant
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- How we assessed it
- Specification researched

#4 on this list
Grumman Down Pant
Stone Glacier
Lightest insulation for glassing
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Specs side by side
| Spec | Super Down PRO Pant | Grumman Down Pant |
|---|---|---|
| Insulation | Water-resistant treated 850+ fill power down | 850+ Fill Power HyperDry Goose Down |
| Reinforcement | Waterproof-treated seat, knees, and lower cuff | — |
| Entry System | Full-length separating side zippers | — |
| Weight Class | Ultralight packable late-season insulation | — |
| Fit Profile | Sized generously to layer over base and mid layers | — |
| Shell Fabric | — | Ultralight DWR-treated ripstop nylon |
| Average Weight | — | Approximately 11.5 oz |
| Zippers | — | Full-length separating side zippers |
| Packability | — | Compresses into self-contained pocket |
| Intended Role | — | Static insulating overpant for glassing |
What our reviewers liked and didn't
Super Down PRO Pant
- Waterproof reinforced seat and knees allow sitting directly in snow and mud
- Full-length side zippers enable fast transitions without removing hunting boots
- Exceptional warmth-to-weight ratio packs down to the size of a water bottle
- Treated water-resistant down retains loft against sweat and condensation
- Ripstop shell fabric is too noisy for stalking inside close distances
- Lightweight main body nylon is vulnerable to puncturing in heavy brush
Grumman Down Pant
- Unmatched warmth-to-weight ratio using high-loft 850+ fill down
- Full-length side zippers allow quick layering without shedding boots
- Compresses down to minimal volume inside a loaded backcountry pack
- Water-resistant down treatment resists loft collapse from body vapor
- Ultralight face fabric will easily tear on sharp rock, scree, or timber
- Not suitable for active hiking due to low breathability and snag hazards
- Requires an outer hardshell for protection in sustained rain or wet snow
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