Are you looking for a great alternative to jeans? looking to dress down but still look smart? well, start by wearing chinos.
Khaki chinos are my favourite followed by navy blue chinos, you can simply pair them with a shirt or polo, but I'll suggest an oxford shirt as it looks cool for when don't want to tuck them in and a pair of white sneakers for that casual/smart look on a summer evening.
Here I am wearing a Polo Raph Lauren Chinos with a Marc by Marc Jacobs Oxford Shirt and an Acne Studios Sneakers, for your next casual evening you should consider wearing chinos trousers with a nice oxford shirt and see how that turns out with a pair of white sneakers.