Royal Robbins Rockcraft 1/2 Zip Sweater Men's

Picture yourself climbing a ridge under a crisp autumn sky, working up a sweat until you need a quick release valve for all that heat. That is exactly what the Royal Robbins Rockcraft 1/2 Zip Sweater delivers. Built from midweight 7-gauge Merino wool, this half-zip sweater insulates without trapping unwanted warmth, so you can drop the zip mid-climb to let cool air in, then pull it back up the moment you stop for a view. The fine 19.5 micron wool sits soft against skin and skips the itch you might expect from a heavier wool, while the long sleeves and standard fit layer smoothly under a shell or over a base layer. Wear it as your go-to mid layer through fall hikes and shoulder-season paddling trips, or let it stand on its own as a light insulating layer once the sun drops below the treeline.

Features

• Half-zip design lets you vent heat during high-output efforts or zip up to seal in warmth
• Made with 100% Responsible Wool Standard (RWS) certified Merino wool, supporting animal welfare, land health, and supply chain transparency
• Fine, low-itch Merino fibers stay soft and comfortable against skin all day
• Long sleeves and a standard fit layer easily under a shell or over a base layer
• Simple one-way zipper closure for fuss-free layering on the move
• Works as a versatile mid layer or a standalone insulating layer for cool-weather adventures