MuvUSA's iPhone 5 Armband was designed with professional quality in mind. It is made to fit an iPhone 5, although it fits my Android (LG Spectrum) really well too. It is also the right size for an iPod Touch. The openings at the top are in the perfect spot for my phone and the screen protector is sensitive enough to make using the touch screen easy. It is also water and sweat resistant, so it protects the device too.
The quality of this armband is impressive. Between the heavy-duty velcro that keeps the band from slipping even under the weight of a heavier phone, to the durable materials and quality-stitched edging, this can withstand the wear and tear from any workout. The openings are all reinforced so they are tear-resistant, and the neoprene is really thick and comfortable around my arm. Mine still looks brand new and I've been using it every time I walk my dog or workout. There is a high-visibility reflective border around the screen protector which is really important to me when I walk outside, and a key holder that's very convenient too.
My only wish for this product is that the band had a longer length so it would fit better around my arm. But besides that, this is my favorite new workout accessory and seems like it was made to last.
I received one or more of the products mentioned above using Tomoson.com. Regardless, I only recommend products or services I use personally and believe will be good for my readers.