Resistance bands make a great portable alternative to the usual weights and dumbbell sets you might carry out at the gym. They still provide you with a valuable form of resistance but in a very accessible and light-weight piece of equipment. So light weight in fact, you can quite literally pop one in your workout bag and take it with you to park for a few targeted tricep sets post run or even better still pack in your weekend bag or suitcase for a business trip or that annual holiday.\r