OccuLux High Visibility Expandable Two-Tone Safety Vest can grow up to 2 sizes with adjustable plastic side snaps, to quickly and comfortably accommodate your changing outerwear needs. Whether worn over a t-shirt, sweater or large winter coat, this 3 styles in 1 vest will protect workers all year long and employers can save on supplying varying sized vests. Zipper closure is durable, dielectric, black, and 100% non-metallic for added safety. This design boasts contrasting orange striping for superior daytime conspicuity, in addition to powerful nighttime reflective visibility. Unlike most other two-tone vests, our orange trim is ANSI compliant. Vest includes two large pockets -- one large inside pocket with secure hook and loop closure for money, pads, pens, ID, plus one large convenient, easy access outer pocket. The vest body uses bright, lightweight, breathable yellow polyester fabric and includes 2'' 3M Scotchlite reflective tape with bright orange trim - One 360° horizontal reflective stripe plus two vertical shoulder stripes. Vest expands up to two sizes from fully snapped position.