Q36.5 Adventure Insulation Vest

The Q36.5 Adventure Insulation Vest is built for the kind of days where the forecast cannot make up its mind — cold mornings that turn mild by noon, or gravel routes where you climb into a headwind and descend into calm air. Q36.5 designed it for changeable weather, and the construction backs that up: a high-density, four-way stretch outer fabric (15 denier, 38g/m²) treated with a durable water repellent finish blocks wind and sheds light rain, while staying light enough to fold down and stash in a jersey pocket once the sun comes out. Q36.5 backs the vest with its 4-Seasons body temperature stability rating, meaning it is built to hold its own from winter base layering through the shoulder seasons on either side of it.

Underneath, the UF Air Insulation liner — a brushed jacquard fabric blended with micropolyester — traps warmth against your core without adding bulk across the shoulders or under a jacket. At the neck, a dual-material Hermetic Collar seals tight when fully zipped, cutting off the draft that usually creeps in at speed or on a fast descent. The fabric blend of polyamide, elastane, merino wool, polyester, and polyurethane keeps the vest stretchy enough to layer over a jersey without restricting your position on the bike, and the merino content helps regulate temperature and manage odor on longer days in the saddle. At 115 grams in a size medium, it barely registers in a pocket, which is the point: something you carry all day and only need for the first hour or the last descent.

The cut favors a relaxed, comfort-oriented fit rather than a raced-cut silhouette, so it layers cleanly over arm warmers or a base layer without pulling across the back when you are down in the drops. Reflective detailing adds a margin of visibility for early starts or rides that run past dusk. That combination — windproof front protection, packable warmth, and a fit built for layering — makes the vest equally at home on a fast-paced commute through shifting city weather as it is on a long gravel day where you are adding and shedding layers as the terrain and temperature change throughout. The Q36.5 Adventure Insulation Vest is available in Navy Blue and Black, sized XS through XXXL, for riders who want one piece that covers the widest possible temperature range without extra bulk in a jersey pocket.