Donny says:
Go to a drum shop, get a decent pair of earplugs that look like little futuristic plastic trees. Will cost between £10 & £20 quid.
what this man said, i picked up two sets, one is always at the practice studio and one i take with me to gigs, they sound clearer than the cheap boots / superdrug foam ones. i think i got mine from ebay for about £8 per set.
i also got two different models 23, and 23a or some code like that, one set is slightly smaller than the other so have a scout round and get your self some