Outer shell 400D Polyamide (100% polyamide) Lining 3D air mesh panels (100% polyester) in back to promote air circulation breathable mesh inner lining (100% polyester) Fit/features 2 external pockets 1 inner pocket internal cellphone pocket front air-vent zipper cool mesh material in front, back & arms stretch panels at shoulders & elbows arm adjustment hip adjustment soft collar Protection EN 1621-1 CE-certified soft protectors at shoulders & elbows optional EN 1621-2 back protector reflective sections Connecting zip