SAXX SXBB09F Droptemp Cooling Mesh Boxer Brief Fly Muskoka Bay DropTemp Mens Cooling Underwear and Apparel SAXX Underwear Canada SAXX DROPTEMP COOLING MESH BOXER BRIEF FLY SXBB09F PAB SAXX DROPTEMP COOLING COTTON BOXER BRIEF FLY SXBB44 BLK Facebook. How It Fits Slim Fit: form fitting around the butt and thighs. Features a fly for quick and easy access. Made For Guys who want to beat the heat. This pair is equipped with our exclusive cooling tech and features strategically placed mesh panels to increase airflow in high heat zones. Whether its day hikes through Death Valley or lively summer bike rides, DropTemp will keep you cool. Built In Tech DropTemp cooling technology, BallPark Pouch, Three D Fit, Flat Out Seams. Made From Recycled polyester (85%) and elastane (15%). Measurements 5 inseam. Care Instructions