It's breathable and can be worn in hot weather. Displayed Size: Jacket: B86 H93 Height 158 Skirt: W67 H93 Actual Size (Measured flat by a layman): Material: 99% Polyester 1% Rayon Jacket: No lining, 14cm slits on both sides Skirt: Lined, 12cm slit in the back Wrinkle-resistant and cool. The skirt was used more frequently. We do not have any pets or smokers. I may not be able to answer questions until after 9 PM due to work, but please feel free to ask.