How long can I trust the original silicone band?

Hi there,

My fenix 5 is 2 years old. The last "hole" on the band broke off a few months ago, but I think the cat may have been the cause of that.

One of the 'strap loops' broke off last week but I don't think I can blame the cat for that.

Anyway, is there any reason I should stop trusting the band to keep my watch from falling into the river?

Do these things degrade over time?

If you do a lot of water sports, when do you get a new band?