Quality fabric but pretty lightweight and breathable. No collar button, it is supposed to lay open. Small Black buttons.Funky Blue Striped Buttoin Up$7.99PriceQuantityAdd to CartBuy NowMaterial97% Polyester 3% Spandex SizeSmall Petite BrandFred David Petite Dimensions Bust 32 in Waist 32 in Sleeve 14.5 in Length 21.5 in