HDPE Reduces Heat Transfer - Made by 100% brand new 185GSM HDPE material to efficiently reduce the temperature under sail about 50°F (10°C), excellent breathability to allow breeze to pass through, offers a cool and airy shelter on hot days 97% UV Block Protection - Effectively blocks 97% of harmful UV ray to protect your delicate skin from blazing sun, creating a comfortable area in summer time Easy to Assembly & Maintenance - Hanging ropes included for convenient installation by simply connecting stainless steel D-shape rings and the mounting points; Foldable design for space-saving storage and washable sail for easy cleaning