Durable & breathable Toray QuadraLam 4-layer upper & lower TIZIP waterproof center front zipper Stretch elastic suspenders with Simms custom opposing male and female buckles Upper chest pocket array features dual side-access stretch-woven zippered storage pockets, micro-fleece lined handwarmer pockets and integrated loop fly patch Patented front and back leg seams deliver articulated fit, improved mobility, and increased durability