"The Premium Zero-Turn Mower Cover by Tough Cover has been designed with longevity in mind. Constructed of heavy-duty 600D marine-grade fabric with double-stitched seams and interior water-resistant coating, our zero-turn mower cover will protect your mower investment for years to come. TIPS FOR CHOOSING A HIGH-QUALITY COVERFABRIC TYPE: Fabric strength is determined by a “Denier” number. Denier (abbreviated D), is a unit of measure for the mass density of fibers. Simply put, the higher the denier number, the stronger the fabric. Many zero turn lawn mower cover are made with 200D, 300D, or even 150D fabric, which is much less durable. Our mower cover is made up of 600D fabric, robust enough for extreme weather conditions to last for years to come. COVER WEIGHT: Compare the item weight when shopping for a new mower cover. A cover made with thin, flimsy material will be very light. At 4.7lbs, the Premium zero turn cover is one of the heaviest, most durable zero turn accessories in the market. WARRANTY: We stand behind our 18-month unconditional warranty and take pride in offering unparalleled customer service. If you ever have any issues or questions regarding your cover purchase, just contact us and we’ll take care of it! Product Features: 600D marine-grade fabric Double-stitched seams Interior water-resistant coating Universal fit Bonus storage bag "