Designed in London, Derek Rose's Alex boxer briefs are crafted of black ultra-soft stretch jersey. The fiber used to make this pair has thermostatic properties to help regulate body heat. Fabric-lined elastic waistband. Pulls on. Available in Black. 94% MicroModal® modal, 6% elastane. Machine wash. Imported. Our model is 6'1"/185cm and wearing a size Medium. Derek Rose Men's Alex Stretch-Jersey Boxer Briefs - Black Size XL A great designer gift. Shop Derek Rose at Barneys New York.