Effortlessly blurring the line between cool and relaxed casual, this combo of a white and red and navy plaid long sleeve shirt and light blue jeans can easily become one of your go-tos. Inject this ensemble with some extra polish with burgundy suede desert boots. Embracing the cold is going to be extremely easy with such ensembles as your fashion inspiration. As you see, in your thirties you have a wide range of outfit options.