Proviz Men's REFLECT360 Outdoor Jacket, Silver Exclusive to Proviz, the reflective material uses millions of tiny glass beads which provides astonishing reflectivity. It's waterproof (5,000mm) and has taped inner seams to prevent water getting in. 3 outer + 2 inner pockets; Micro-Fleece lined collar; Waterproof storm zip with garage; 100% reflective; Seam-sealed for waterproofing; adjustable hood; built in vents front/side/back/underarm; adjustable waist + velcro cuffs; machine washable To combat any discomfort, we built in an extra ventilation flap in the back of jacket which will let hot air out but won't let inclement weather in. It also has underarm ventilation - great for warmer days. Each underarm features 30cm optional zips. This jacket can be used for multiple activities includiing cycling, walking, hiking, climbing, sailing. If you are a dog owner then we also have a matching REFLECT360 waterproof dog coat so that you and your dog are clearly seen at night. The jacket's fabric is highly technical. In daylight it's a modest grey. At night, when the fabric picks up an external light source, ie headlights, it gives astonishing reflectivity. The material is CE EN 20471 certified. Soft cotton mesh lining acts as a climate control mechanism + increases airflow by creating separation between your skin/shirt + jacket, maintaining more consistent comfort w/o the need to add layers.