Going for a casual look? Sleeveless basics it is. The safest pick that can never go wrong. Ever.
Is today a I-don't-really-care-but-want-to-seem-as-though-I-care kind of day? Grab the black turtleneck crop top with or without a sleeve. Add on a statement necklace, put on a pair of sunglasses and throw a leather jacket over and you're set to leave the house.
Want to go for a more formal, chic or classy look? You've got it.