Midwest Canvas 8MIL 15RND Standard 15' Round Blue Solar Cover, 8 Mil CONDITION:New Extra Large Capacity: 155L storage or while traveling for Extra Large Capacity: 155L storage space made with waterproof 600D Oxford fabric accommodates bulky gear securely Mini pendants lights with hand blown Our 8 MIL Blue Solar Blankets feature fantastic heat retention with their 8 Mil UV stabilized resin construction and hundreds of tiny air pockets which capture heat from the sun and transfer it to your pool water so you can have a relaxing time in your pool Our 8 MIL Blue Solar Blankets also help you save money on chemical costs and maintenance times since they help reduce chemical loss through evaporation