Access: there's nothing worse than struggling to unzip your belt to reach a gel at mile 20. Look for a belt that is easy to access on the move. Added extras like gels loops on the waistband are always handy. Weight: most running belts are lightweight, but if you're a particularly petite runner, or you're planning on wearing the belt over a long distance such as a marathon, the lighter the better. READ NEXT: Best water filter jugs The best running water bottles to buy 1. Salomon Soft Flask 500ml: Best soft flask water bottle

Fabric: if you're a particularly sweaty runner or you're exercising in a hot climate, it pays to consider the fabric. 'It is essential that the material is breathable and doesn’t retain moisture,' says Anthony. 'You need the material to allow heat to escape, so you don't overheat.' Investing in a reusable water bottle will also do away with the need to buy a new water bottle every time you’re thirsty, which many of us are guilty of doing, helping you and the environment. They fasten around your waist to hold your belongings while you work out,' explains Anthony Langley-Smith, co-founder of sports brand Proviz. 'There are countless options out there, but most running belts are very similar. They usually have a number of compartments, they can be made of different materials and come in a range of sizes, depending on what you need it for.' What to look for in a running belt Many of us struggle to consume the recommended two litres of water a day, with those who partake in strenuous activity – such as runners – at even greater risk of a shortfall in their H2O intake and therefore performance. Short of setting yourself reminders by way of an alarm on your phone or scribbling a note on your palm, a good water bottle will encourage you to increase your intake of liquids while exercising to ensure you’re operating at your peak at all times. A running belt is a must-have accessory for fitness enthusiasts who need something to hold their bits and pieces. But belts are best suited to the sport of running, because most brands have designed them specifically to benefit the action of forward motion, while also minimising the risk of bounce and chafing which often comes with high-impact exercise.READ NEXT: Best running shoes to go further and faster How to choose the best running water bottle for you How much water should my water bottle hold?