Using this product our team found that the leather bands added a classy touch to our Fitbit devices, making them perfect for both everyday wear and workouts.The app functionality made it easy to change looks depending on our mood, making for an overall fun design experience. One downside is that the leather bands can sometimes feel snug during intense workouts, but with a quick adjustment, they fit comfortably. Overall, a GREAT addition to our Health and Household accessories!See full review