Wife & I bought these after researching brands and prices online. We went to the store to try on and bought them there. They fit well and had a zippered left chest pocket big enough for GPS or cell phone. There is also a ring inside the pocket to hook keys to that gets in the way of the zipper and can sometimes jam the zipper. To avoid jamming and subsequent frustration trying to un-jam, just pull straight away from your chest and simultaneously pull to open or close the zipper.
