Material HEROS-TEC® 500D fabric Lining breathable mesh inner lining 3D air mesh panels in back to promote air circulation Membrane removable waterproof, windproof & breathable liner Safety Connecting zip EN 1621-1 certified soft protectors at shoulders & elbows optional EN 1621-2 back protector reflective sections Comfort waist belt stretch panels under arms soft collar Held Clip-in Technology internal cellphone pocket front air-vent zipper air-vent zippers in front, back & arms arm adjustment 4 external pockets 2 inner pockets 2 external pockets double as air vents