Jacket season is here, and CAMEL has a new answer for anyone who'd rather buy one system than three separate coats. The Volcanic Shell Pro 3-in-1 pairs a goose down puffy with a waterproof shell that zip together into a single winter-proof jacket — or split apart for milder days.

The liner is the warmth half of the equation: a lightweight puffy filled with 90 percent high-loft goose down, built for subzero camp nights and cold-weather hikes, with elastic cuffs and a high-cut neck in a clean, streamlined design. Because down breathes naturally, it works even when you're moving slowly rather than grinding uphill.

The shell is where the spec sheet gets interesting. It's fully seam-sealed with a 22,000+ mm waterproof rating — enough for sustained torrential rain or heavy blizzards — and hits that figure without fluorine-based chemistry. That matters because fluorine coatings are so-called forever chemicals that persist in ecosystems and the human body, so a high-performance DWR without them is a genuine plus, not just marketing.

Breathability gets real numbers too: the shell vents at ≥9000g/(㎡·24h), which CAMEL says prevents the miserable cycle of sweating inside your jacket on a climb, then freezing when you stop. Storm-proofing details are thorough — a zippered closure behind a storm flap, Velcro wrist cuffs, a large hood, a cinch-cord collar and waist, two flapped drop-in pockets and two zipped ones.

Worn separately, you get a puffy for dry cold and a rain shell for wet shoulder-season days. Zipped together, it's a single jacket for the coldest, sloppiest weather winter throws at you. For travellers, that flexibility is the real pitch: one bag-friendly system covering everything from a drizzly city break to a snowy trailhead, instead of packing separate pieces for each condition.

CAMEL is a U.S.-based outdoor brand with more than 60 years of history and Italian craftsmanship roots, positioning the Volcanic Shell Pro for climbing and serious cold-weather adventure. If your winter kit currently amounts to one jacket that's either too warm or not waterproof enough, a modular system like this is worth a look before the first big storm. — Outside Online