Trendy pieces come and go, but a good capsule wardrobe lasts forever. If you're looking to give your summer staples a refresh without overhauling your whole closet (or draining your bank account), Amazon has you covered. A few smart additions - think lightweight layers, breezy dresses and versatile sandals - can breathe new life into your existing rotation while still keeping things effortlessly streamlined. Even better, every single one of these finds is under $50. Scroll ahead to shop our 19 favorite picks that prove building a capsule wardrobe doesn't have to cost a fortune.