Just received them so can't comment on longevity yet but my kids love them so far! I bought these for my 7 and 9 year old Vivofit Jr. 2. My kids say they are more comfortable than the original harnesses. They are soft and seem to be getting tighter too. My son likes the penultimate tightest setting, but the bar stretches a bit. (See black stripe in photo) I was disappointed to see that the purple stripe had no attachment. We planned to use it and I couldn't switch a piece from another group, so it's useless. My kids agree. I hope they last a while longer! Update: 12/11/18 One of my children developed a rash after wearing a new band for three days. My other son still loves wearing it!
🕹️ HTC Vive Tracker 3 Pack (2018) for Virtual Reality Headset
3 Review
🕶️ GELETE Bluetooth Sunglasses: Music, Calls & Polarized Lenses for Men & Women
3 Review
🕶️ Flows: Polarized Bluetooth Audio Sunglasses with Open-Ear Speakers - High Sound Quality, Long Battery Life, UVA & UVB Protection - Bruno Style (Slate Gray)
4 Review
🕶️ Bose Frames: Black Audio Sunglasses with Bluetooth Connectivity and Open Ear Headphones
3 Review