I was wearing the original straps for my Fitbit Charge 3 until I found them. They are so much more comfortable to wear. 1 v They have holes for air access, 2 v. these are soft ligaments and 3 BC. You don't have the part where the extra tape goes through when you tighten it. This species slips through the gap and invades itself. I will never buy any other kind again.
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