The Costello is built with breathable, ultra-light 4.7 oz fabric that keeps you cool and comfortable on the job. Four-way stretch and a gusseted crotch provide full range of motion - whether you're climbing, crouching, or kneeling - while durable mini ripstop nylon prevents snags and tears. The Durable Water Repellent (DWR) finish sheds water and stains, and its innovative pocket system keeps your gear organized and within reach.