Black Diamond Men's Coefficient LT Quarter Zip Pullover-BLACK

The Black Diamond Men's Coefficient LT Quarter Zip Pullover is the midlayer that serious outdoor athletes reach for when conditions demand performance without bulk. Built around Polartec Power Grid fleece, this lightweight quarter-zip balances warmth and breathability in a way that traditional fleece simply cannot match. The gridded interior construction increases surface area against the skin, promoting faster moisture transfer and keeping you dry and even during intense activity.

The center-front quarter zip gives you immediate temperature control. As your output increases, a quick zip dump sends excess heat away so you stay in your performance zone rather than overheating. The hoodless profile is intentional.

It allows the Coefficient LT to layer cleanly under any hooded shell or insulated jacket without creating unwanted bulk around your head and neck, making this one of the most versatile pieces in a layering system. Thumb loops provide over-hand protection on cold mornings and add sleeve stability when gloves are pulled on over the top.

Flatlock stitching throughout the construction reduces chafe during prolonged wear, which matters on long approaches, ski tours, or trail runs where comfort is as important as performance. A zippered chest pocket keeps small essentials accessible and secure without interrupting the clean midlayer silhouette.

The Black color is a classic choice that pairs effortlessly with any kit and shows minimal wear over time. This is a piece built for the demands of real mountain use, not just casual wear, and it reflects the engineering focus that has made Black Diamond a trusted name among climbers, skiers, and backcountry travelers worldwide.