Ridge Merino · Merino fleece tight · Mid-range
Ridge Merino Northwind Merino Fleece Leggings
WarmestCold-weather running guide
A merino-lined fleece tight that Treeline named its best wool option and one of the warmest it tested. It shines in single-digit cold but is too much once temperatures approach 20°F.
- List price
- $120Matches Treeline's listed $120.
- Fits
- Women's
- Warmth
- Thermal
- Wind
- None
- Water
- None
- Visibility
- Reflective details
- Temperature range
- 0 to 20°F (−18 to −7°C) From published reviews
- Best for
- Very cold, calm runs in the single digits °F, for runners who prefer odor-resistant natural fibers.
- Not for
- Typical 25-40°F winter runs or windy days, since it has no wind panels.
Downsides
- Too warm for most winter temperatures
- Minimal reflectivity (small logo)
- Women's only, XS-XL
Specs
| Materials | 49% nylon, 46% merino wool, 5% Lycra; 300 gsm merino stretch fleece (18.5 micron), merino against the skin |
|---|---|
| Inseam | 28 in (brand); Treeline lists 30 in |
| Rise | High |
| Pockets | 1 zippered thigh, 1 drop-in thigh |
| Ankle zips | None listed |
| Fabric weight | 300 gsm |
| Merino content | 46% |
Features
- 300 gsm merino-faced stretch fleece
- High rise with drawcord waist
- Zippered left-thigh pocket and drop-in right-thigh pocket
- Low-profile flatlock seams
- Four-way stretch
- OEKO-TEX Standard 100 fabric
What reviewers say
Best Wool Tights pick. Treeline called it extremely warm, comfortable and odor-resistant, best for single digits or colder, and likely too warm from about 20°F up, which limits its versatility.
Treeline Review: 9 Best Women's Winter Running Leggings of 2026 (Tested) · Feb 12, 2026
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