Review on GUB Mountain Bike Phone Mount Holder – Adjustable Aluminum Alloy Bicycle Cell Phone GPS Holder, Rotating Cradle Clamp for Motorbike & Cycling – Compatible with iPhone, Samsung, Android Smartphones (Black) by Brandon Skeet

I used the included elastic strap when I first used it on my 100 year bike ride. Then I realized that I was fine without it. It also protects my phone quite well on bumpy roads or accidentally hitting potholes. In fact, I was more worried about my tires than throwing away my phone. I've only had it about 100 miles so I'm not sure how the brace will hold its shape and come loose quickly on a bumpy road like every other brace I've had.