When Anine Bing launched a sportswear range last year we knew it would be an instant hit. If the sell-out tiger T-shirt is anything to go by, you have to be fast when it comes to snagging an item from this label. The latest must-have piece for workout enthusiasts and runners alike is Anine Bing's new Jeremy Baseball cap (£42). If you can't quite deal with the warmth of a beanie hat while out running, a baseball cap will provide protection from a multitude of weather conditions and is more breathable, too.