nice light weight and look good on the mountain bike, large insulated bottles sometimes fall out of inferior cages while hitting roots and rocks, So far it has done great, once i turned it right side up. actually worked for a ride upside down, thought I broke it when bottle didn't fit quite right. da
These are simple plastic cages. They are reasonably lightweight and look good. They grab the bottle snugly and that's good if you're using these for MTB, riding gravel or on bumpy roads. You can spend a lot more on a bottle cage but you won't get any better functionality than these provide. The snug fit could be an issue if you are challenged at quick bottle removal and replacement but it's not a big deal.