I made this wristband specifically for my Garmin Vivofit 4 because of the color and size. It has a large wristband. This replacement strap is intended to replace the original black strap that came with the device. Black suits men and as a woman I love the color! The strap is well designed and fits my Garmin perfectly. I wear it every day and it shows no wear or stress, it's very flexible. It has a looser fit than the smaller strap allowing my wrist to breathe while walking and room for my golf glove without restriction as I am an avid golfer.