I have a pair of Pro Ears ultra 33's. They've held up well for about a year now, except for once when they fell off my head and came apart. Just snapped it back together and haven't had a problem since. They seem to be up to the 33 db rating. Kind of large though, but I guess that's what is needed for such a high db rating. I also use earplugs in addition to the ear muffs. Too many years around construction noise and jet engines. Don't want to take any more chances, especially for sport.
Steve