I love these bands: https://www.amazon.com/gp/aw/d/B0B87MZCSB?psc=1&ref=ppx_pop_mob_b_asin_title

But you will have to deal with the rattle because the after market connectors have loose tolerances. If you're willing to wait, you can get that same exact band from AliExpress for ~$3.50. I bought 4 colors .. most are listed under being compatible with the SUUNTO 3 watch. https://m.aliexpress.us/item/3256804685546285.html

I like them because they're thicker, breathable, and have a little stretch to them. Plus, you can secure the loose end with the included flat pin instead of having it loop back under (uncomfortable) or using a loop retainer.

I just wish they would have made the color inserts removable for more customization. They're molded in (basically a second mold injects the second color), so you can't remove them since silicone loves to stick to silicone.