Summary: I'm surprised by @DrewStar24's experience with these headphones. I've had my first pair for over a year now and they're going strong. The only physical issue I noticed was the rubber cover for the volume, play and pause button has lost some of it's adhesive, so it's can be pulled off if I wanted to.
Pros: Great for running
Cons: Not great for hearing ANY outside noise. It's completely noise cancelling
Summary: These Headphones Are GREAT!!! Once you find your perfect fit. Walk, jog, or run...They stay in! I really doubled my workout! They are lightweight, the cord is thinner than the cord on my old Beat Tour. But, sound quality is much superior! Before writing this review.
Summary: My husband has destroyed about 4 different brands of headphones from sweat. So after reading reviews, I got these for his bday. He runs 3-4 miles/day 7 days a week. So far these are the only ones that haven't broken due to sweat.
Summary: The process and ease of fit for a In-Ear headphones is not trivial and usually requires much adjustment, however the fit was perfect for me right out of the box. This is my third pair of In-Ear headphones, so fit was a priority. My first pair was a Monster brand and was very good.
Summary: These headphones have a great sound and they stay in your ears. Comes with multiple sizes. If you get the right fit, even if you try like I have, you will not be able to shake them out of your ears.