Blackout & Thermal Insulated: Our outdoor curtains feature 230GSM heavy duty fabric, blocking up to 80%-90% of harsh sunlight and 90% of UV rays to create a cool shaded environment in summer. With excellent thermal insulation performance, the thick fabric effectively blocks outdoor heat infiltration, keeping your patio/porch cool and comfortable all summer long. Waterproof Design: Crafted from high-quality polyester fabric, featuring a triple-weave construction and integrated waterproof technology, these outdoor curtains easily withstand daily outdoor elements such as rain and mild wind. They are perfectly suited for outdoor settings, boasting durability that meets the demands of outdoor use.