Proton Fortius Jacket Size:mrtwstd_M Premium mesh and nylon upper

Premium mesh and nylon upper

100% durable water-resistant TPU

Rigid architectural contours and buttery smooth calfskin leather converge in this quintessential leather belt

Pure wool is masterfully tailored with an architectural pleat front and a statuesque high-rise waistband

Modern regular-fit short-sleeved profile

Proton Fortius Jacket Size:mrtwstd_M Premium mesh and nylon upperArticulated athletic architecture and advanced vapor permeable insulation make this technical jacket the premier choice for high output mountain missions. Formed from lightweight Fortius Air 20 nylon, the outer shell works in unison with an airy Octa Loft lining to continuously vent excess body heat even when compressed. The streamlined, body skimming framework stacks effortlessly underneath a heavy hardshell. Weather resistant Fortius Air 20 shell