When investing in a bag, it's smart to abide by the 'buy now, wear forever' mantra. About as classic as it gets, SAINT LAURENT's 'Toy Puffer' is made from soft leather and quilted to create spongy panels. The chain-trimmed shoulder strap matches the gold-tone 'Cassandre' plaque and the zip on the inside – it'll hold your phone, keys and lipstick.