The Arc'Teryx Cormac Short is constructed with innovative materials and a minimalist design and is made for mountain training and running. Lightweight Diem™ fabric gives stretch performance, exceptional airflow, and is treated with a durable water repellent (DWR) finish. The patterning eliminates the inseam, reducing fabric bulk and potential irritation. Laminated hems further eliminate seams. The built-in boxer liner has excellent next-to-skin feel and a low profile construction to reduce chaffing.