Nathan 5k running waist belt the nathan 5k running waist belt has a lightweight neoprene construction along with an adjustable webbing belt with a clip fastening for a comfortable fit two large zipped pockets to the front allow you to keep your essentials with you while the reflective detail helps to increase your visibility in low light situations completed with the nathan branding to the front running belt neoprene construction two zipped pockets webbing belt clip fast