A charcoal crew-neck sweater and tobacco chinos are a cool outfit formula to have in your menswear arsenal. All you need is a good pair of dark brown suede desert boots to complete your ensemble. With an outfit like this in your winter collection, you'll manage to stay toasty and look stylish despite the nasty weather. So if you're searching for outfit ideas on what to wear as you move into your 30s, this ensemble is definitely worth saving for later.