With sleeves that hit at just the right spot on the biceps, Madewell’s signature striped T-shirt nails the not-too-big, not-too-tight thing. Made of an old-school blend of three different fibers, this crewneck feels broken-in from the jump (and gets even softer with each wash). Style Name: Madewell Allday Griswald Stripe Triblend Crewneck Pocket T-Shirt. Style Number: 6034133. Available in stores.