The Kühl Men's AeroLight Jacket is a stretchy synthetic puffy engineered to breathe, sized to slide under a shell or stand alone on cool days. Body-mapped insulation and a perforated stretch shell deliver warmth without the sweaty, overheated feeling of a traditional puffy, so you can keep moving with it on.

Why we like it:

The perforated shell breathes in a way most puffies simply cannot, which means you can wear it on the climb instead of stuffing it in your pack the moment you warm up.

Features and Functions:

The AeroLight Jacket starts with a 40 GSM stretch synthetic insulation mapped across the body for balanced warmth, faced by the perforated KÜHL AIR shell, a 67 GSM stretch nylon-spandex weave carrying a PFC-free DWR finish. Strategic abrasion-, rain-, and wind-resistant panels protect the most exposed zones, and articulated shaping keeps the trim fit from restricting your reach. At roughly 400 grams it stays light enough to layer or pack.

Fit and Sizing:

The jacket has a close-to-body cut specifically designed to layer under a shell jacket without bunching. Take your usual size and go.

Bottom Line:

This jacket works best as an active midlayer under a shell or a light standalone puffy on milder days. It is for skiers and tourers who overheat in conventional insulation.