The industry-first Aggressor Armored Pants are designed to combine your winter riding base layer pants and armor into one convenient, breathable low-bulk layer. These base layer pants are made of our fan-favorite Aggressor(TM) 2.0 warming fabric, which is a midweight gridded stretch base layer material designed to trap heat and wick sweat. Hip, thigh, tailbone and removable knee armor create a complete leg protection package that&&';;s compatible with knee braces when the knee armor is removed. With unique armor composition designed to stay flexible in colder weather, Aggressor Armored Pants are designed for all types of snowmobiling. Note: if your pant/bib has knee pads, remove the knee pads when wearing the Aggressor Armored Pant. Next-to-skin armored base-layer pant Removable injection-molded TPU knee & shin armor with 7mm EVA impact foam Compression molded vented 10mm EVA impact foam side hip & thigh padding Compression molded vented 7mm EVA impact foam tailbone padding 4-way-stretch KLIM Aggressor(TM) 2.0 warming fabric KLIM Aggressor(TM) 1.0 fabric in crotch gusset Base layer pant is knee brace compatible with knee armor removed Knee armor is snowmobile boot height compatible Fabric is moisture-wicking, fast-drying Low profile comfort seams Gridded base layer design traps heat Engineered specifically for the abuse of power sports Pass-through fly