Rab Firewall Pants - Men's Black Large Short. Theyre engineered with 3-layer Pertex Shield deflecting hammering rain to keep you bone dry and making smooth progress towards the summit. With a part-elasticated waistband and full-length side zips they're quick to pull on over boots and crampons so theres no delay when a storm is closing in. Specifications for Rab Firewall Pants - Men's: Manufacturer: Rab Gender: Male Age Group: Adults Application: Outdoor Apparel Fit: Classic Color: Black Fabric/Material: 40D Pertex Shield 3-Layer Construction Fastener/Closure Type: YKK Zipper Pockets: Yes Package Contents: Rab Firewall Pants - Men's Rab QWI-34-BLK-LRG-SH: Firewall Pants - Men's Black Large Short