From the Manufacturer OK-1 Manufacturing is the parent company of OK-1 Safety and Ergonomics. OK-1 has been in business for over 35 years with a commitment to safety. #00955 is a Vest made of 100% Polyester mesh with side elastic and Hook & Loop Closure. Color is Orange with a 1" Hi-Gloss reflective material. Size 4-5XL (60-72")