This is an amazingly versatile jacket. It is a windproof textile jacket for cool days, but fold down the windproof panels on the chest, and back; open the full length arm vents and side torso vents, and you have maximum air flow on hot days. An additional removable zip-out Airguard® waterproof liner means you can handle wet weather, and the included removable thermal EverHeat® liner keeps you warm when it gets cold. All nylon exterior construction, with heavy-duty 1680 nylon abrasion zones, lots of pockets, and ample use of NightViz® reflective material, make this jacket useful for a wide range of climates and riding applications. Sas-Tec® armor at the shoulders and new infinitely adjustable elbow pads mean you can set the armor exactly where you want it for a perfect fit. Back pad pocket with PE foam can be upgraded to Sas-Tec® Level 2 C.E.-certified back protector (sold separately) for extra protection. This jacket is also compatible with Scorpions' optional kidney belt (sold separately) for additional support and lower back protection. From touring in cold wet climates, to commuting in hot humid places, the Yosemite jacket will handle it all. 500 denier nylon main body material, with 1680 denier nylon abrasion zones. All critical seams are Exo-Stitch® Safety Seams with heavy bar tacking at high stress areas. Heavy-duty mesh ventilation areas on chest and entire back panel. Zip-down wind blocking panels, torso vents and full-length arm vents can be adjusted for optimal airflow. Two large cargo pockets on lower front, two chest pockets, one large cargo pocket on rear and one internal waterproof pocket in liner. Adjustment straps at waist, biceps and forearm for perfect fit. New C.E.-certified Sas-Tec® armor with molded Velcro® brand hook-and-loop at elbows for adjustability. Sas-Tec® C.E.-certified armor at shoulders. PE foam back pad in back protector pocket can be upgraded to Level 2 Sas-Tec® protector (sold separately). Ample use of NightViz® reflective on front and rear of torso, arms and elbows for increased nighttime visibility. All exterior zippers are YKK® urethane-coated with Black Oxide sliders. Hook-and-loop adjustment tabs at wrists, and YKK® Fold Lock zippers for easy on and off. Removable full sleeve AirGuard® waterproof / windproof liner. Removable full sleeve EverHeat® thermal liner. Compatible with optional Kidney Belt (sold separately). Comfortable neoprene collar. Accordion stretch panels at elbows for easy range of motion. 8" #5 YKK® zipper and elastic panel for connecting jacket to pants.