I like them a lot. The 6.3 in is enough to fit a larger bottle and the mesh pockets on the side have their uses. $19.99 each

https://www.amazon.com/dp/B082DTMKK8?ref=ppx_pop_mob_ap_share

This is what is on mine, love it

kemimoto Bike Cup Holder, 6.8... https://www.amazon.com/dp/B082DTMKK8?ref=ppx_pop_mob_ap_share