The snap is a feature on some older models, it works and does not freeze in my experience in MN. Other models have a second Velcro flap over the top for this purpose which is the only parts I have issue with snow in Velcro! On the main Velcro I have never had any issues since adjusting my technique. I apply as normal initially, then “massage” the Velcro together for maximum stick, lastly, I do not undo the lower section unless absolutely necessary, my gaiters remain on my boots, simply folded over at the top for taking my boots off. This keeps most of the loop side covered and can’t get snow accumulation, especially on the more important lower. Notably, I’ve had more issues closing more worn out pairs, and replaced the Velcro on some to improve performance.
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