This laid-back pairing of a navy crew-neck sweater and a white crew-neck t-shirt is a goofproof option when you need to look cool and casual but have zero time. Finishing with a pair of dark purple leather tassel loafers is a guaranteed way to infuse a sense of class into your outfit. This ensemble isn't a hard one to score and it's summer-appropriate, which is important when it's blazing hot outside. A fail-safe option pairing proper for men in their 20s who like more polished outfits.