What's Inside Anthony Joshua's Gym Bag?

What does a World Heavyweight Champion always have in his kit bag? British Vogue caught up with Anthony Joshua at Repton Boxing Club in Bethnal Green to find out what the gold medallist never heads to training without, from custom Beats by Dr Dre to socks with holes in them (“If it’s not broke, why fix it?”) and a Pulseroll Massage Gun he suggests using while watching Eastenders.