Need a boost? Meet Adidas' latest running shoe – the Adidas Ultraboost 21 (£160). If you're an outdoor runner who's concerned about joint health due to the impact of running on uneven surfaces, this is a great option. The new-and-improved shoe features maximum support and enhanced movement; plus, it's made with recycled material made up of at least 50% Parley Ocean Plastic (a material created from upcycled plastic waste that was intercepted from beaches and coastal communities before reaching the ocean, according to Adidas).