Janji · Waterproof running shell · Premium
Janji Rainrunner Pack Jacket 2.0
Best for rainCold-weather running guide
A light, truly waterproof running shell with built-in venting that reviewers liked for cold rain; it can still get warm and clammy on hard efforts, and it runs small.
- List price
- $218Men's list price for most colors on janji.com; Conifer lists at $208 and the Warpnet Hi-Vis Slipstream colorway at $238. Outside listed the women's at $208; women's US price not verified.
- Fits
- Men's, Women's
- Warmth
- Light
- Wind
- Windproof
- Water
- Waterproof
- Visibility
- Reflective details
- Temperature range
- 25 to 60°F (−4 to 16°C) The brand's stated range
- Best for
- Cold, wet runs where you need real waterproofing without the bulk of a hiking rain jacket.
- Not for
- Dry cold, where a wind shell breathes better, or runners who insist on pit zips.
Downsides
- Can feel hot and clammy when working hard, per Treeline
- Runs small; Janji advises sizing up
- No waist drawcord, per Outside
Specs
| Materials | 2.5-layer laminated 100% nylon ripstop with PFC-free C0 DWR |
|---|---|
| Weight | 229 g (8.0 oz), men's M |
| Hood | Yes, adjustable scuba-style |
| Packable | Yes, self-stowing pocket |
| Insulation | None |
| Waterproof rating | 20,000 mm / 20,000 g/m²/24h |
| Pockets | 2 zippered hand (left with phone sleeve) |
Features
- 20K/20K waterproof-breathable fabric with fully taped seams
- YKK AquaGuard water-repellent front zipper
- 360° panel venting around the core
- Adjustable scuba-style hood with zipper garage
- Self-stowing pocket with elastic carry strap
- Reflective logos; one hi-vis colorway offered
What reviewers say
Best all-around cold-weather running jacket: stretchy fabric, good ventilation, cuffs that keep hands covered and a longer back; the tester stayed comfortable through 40s°F downpours with gusty wind, and the only complaint was the lack of a waist drawcord.
Outside: 7 Best Women's Winter Running Jackets of 2026 · Mar 13, 2026
Tested but not awarded in the men's guide: noted the 20k/20k rating, taped seams, strong DWR beading, PFAS-free build and new 360-degree venting as a clear step up from version 1, but found it hot and clammy when sweating and wanted pit zips.
Treeline Review: 4 Best Men's Running Jackets of 2026 (Tested) · Nov 27, 2025
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