Scott Drake tops are made from premium-grade 38 ounce material. Rear windows are included. When quality matters, use the best! All of our tops feature: Now includes assembled front edge bulb seal Pre-shrunk for a better fit Specially treated vinyl to resist mildew 5 year pro-rated guarantee, against cracking, peeling,separating and excess fading Coated vinyl for extra waterproofing Factory original pinpoint grain Heavy duty nylon easy glide zipper Includes wire-on, stainless tips and stainless screws Meets motor vehicle fire retardant requirements