A:Answer This is the solution I have been waiting for! My iPhoneX was too bulky for being hand held and or arm band stored during my runs - too bulky! My existing fanny packs sis not work - uncomfortable bouncing and constricting straps. The SPIbelt has an easily adjustable, comfortable belt, that keeps the pouch snugly in place without constricting! Once my phone is in place, I don’t notice the additional bulk! Happily focused on the road, traffic and keeping my form efficient! Photo of belt with fitness tracker for scale.