The Yukon Flex reigns supreme at the top of our POWER MOVE™ collection, engineered for folks who reach, bend, lift, and swing on the job. Built from our water-resistant DRY FLEX™ stretch canvas, this ultra hardworking jacket is designed with deep-bend articulated elbows that won't ride up, a Flex Action™ double bi-swing back, and underarm gussets for superior ease of movement and full range of motion. The Yukon Flex offers unbeatable comfort with a soft, upper back panel that moves with you, and an insulated, nylon panel to protect your lower back where warmth tends to escape.