classic bib design with a 2-layer gore-texâ„¢ membrane . the burton gore-tex reverse bib pants keep you dry in all weather conditions and ensure full performance with a 2-layer gore-texâ„¢ membrane and fully taped seams with gore-seamâ„¢ tape. they also feature an innovative living lining® that adapts to your body temperature. waterproof ykk® zips and adjustable straps round off the reverse bib pants for men. living lining®cold mornings and sunny afternoons, fast turns and slow lift rides - a day in the mountains is full of extremes. burton's living lining® provides automatic climate control without adding bulk or extra weight, so you can rely on consistent comfort.stay cool: when you're warm, the breathable pores in the living lining expand to dissipate excess heat and protect you from overheating.keep warm: when you're cold, the breathable pores in the living lining contract to trap your body heat and keep you warm longer.