If you're really hardcore about canceling noise I would recommend buying a pair of actual earmuffs, not headphones, and wearing those over a pair of earbuds. It

If you're really hardcore about canceling noise I would recommend buying a pair of actual earmuffs, not headphones, and wearing those over a pair of earbuds. It's what StarCraft 2 pro gamers do to ensure they can think and concentrate when they compete in front of large audiences.