Why not try pairing an olive crew-neck t-shirt with navy jeans? As well as totally functional, both items look great when paired together. A pair of navy and white canvas low top sneakers finishes this getup quite nicely. So if it's a blazing hot afternoon and you want to look dapper without putting too much effort, this ensemble will do the job in no time. When it comes to casual clothing for men over 40, this ensemble is perfect.