Everyone needs a few new pieces to kick off a new season, and this spring, square neck tops are of the best trends to shop. A square neckline flatters your collarbones and neck, and there are tons of styles to choose from, whether you want to dress up in a blouse or go casual in a tank. Pair a top with a square neckline with your favorite high-waisted jeans or a pair of denim shorts for the perfect outfit no matter what look you're going for.