A stylish nod to the '90s, the adidas by Stella McCartney Bum Bag is set to become your new favorite everyday essential. The practical yet casual-cool bag is cut from super-soft 100% recycled polyester weave and is roomy enough to house all your essentials but compact enough not to get in the way. In line with the rest of the collection, the beauty of the bag lies in versatility. A true proponent of spontaneity, you can nonchalantly sling it over your shoulder while you run errands or fasten it to your waist on brisk morning walks or weekend hikes in nature. Keep valuables safe thanks to the zipped pocket. The sleek style and flashes of neon make incorporating it into your everyday wardrobe a breeze.