Running Warm and Looking Cool: The 2025 Janji Winter Collection

Janji’s latest Winter lineup has arrived, and we’ve had the chance to test out a few standout pieces built for cold-weather miles. You may see some similar styles from our recent look in at their Fall Collection, but there are some great cold weather items here as well.

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Thermalrunner Insulated Jacket

First up in the Winter Collection is the Thermalrunner Insulated Jacket — a surprisingly lightweight piece that still packs in some serious warmth. It’s available in four colorways, though we’re admittedly a bit obsessed with the Arctic Delta option.

It strikes that perfect balance between functional and fresh — something that looks just as good on post-run coffee stops as it performs out on frosty morning miles. I’ve already had so many positive and inquisitive comments on this top — it’s one of those pieces that turns heads before you even start your run.

But this jacket goes well beyond just looks. It’s built with strategic warmth, using targeted panels of 40g PrimaLoft Gold Active Insulation to keep heat where you need it most without adding bulk. The durable nylon shell adds a layer of protection that’s both water-resistant and wind-blocking — perfect for whatever the Oregon trails (and weather mood swings) decide to throw at you.

And goodness knows, around here you have to be ready for anything — from sideways rain to those random, glorious sunny breaks. Thankfully, this jacket packs down easily if you need to shed a layer mid-run. It’s a bit of an investment, sure, but one that feels built for the long haul.


Waffleloft Long Sleeve

For those days when you don’t need full-on weather coverage, the Waffleloft Long Sleeve hits the sweet spot. It works just as well as a layering piece as it does on its own — and honestly, it looks so good in casual settings that I’ve worn it out and about with no one the wiser.

The heavyweight waffle knit isn’t your lightest option, but that’s sort of the point — it’s built for those chillier runs where warmth matters more than ounces. Despite its heft, it still manages to be breathable and moisture-wicking, keeping things comfortable even when you start to heat up.

I’m a big fan of the thumb holes and was pleasantly surprised that the sleeves were an ideal length for my gangly arms.

Available in four muted colors, it’s a versatile, cozy piece that easily blurs the line between run-ready and everyday wear.


Atlas Multi Pant

Enough about the gear up top — let’s talk legs. The Atlas Multi Pant is a versatile option built to handle just about anything this winter throws at you. It’s light, stretchy, and fully functional for running, with multiple pockets for storage and a fit that moves naturally without feeling restrictive.

These also layer perfectly over a pair of tights, and if things start to warm up, the knee-high ankle zips and packable design (it folds into its own pocket) make it easy to stash away mid-run.

And once again, Janji nails that crossover appeal — these look just as good off the trail. The Alpine Delta colorway, which matches the jacket, is especially fun and has already earned me more than a few compliments when worn casually. It’s available in four color options and feels like a true do-it-all winter pant.


We honestly don’t think we’ve ever been let down by a Janji product, and this latest winter lineup continues that trend. Everything here performs exactly as expected — thoughtfully designed, functional, and just plain fun to wear. If you haven’t given Janji a try yet, it’s absolutely worth checking out.

Plus, joining the Janji Collective not only scores you a 15% discount and access to unique prints, but also monthly gear exchanges! Gear that looks good, feels good, and does good — you really can’t go wrong.

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