Shure is a big player in the world of high-end headphones, and for good reason -- the company makes some of the most impressive units in the business. Its SE315 sound-isolating earphones are aimed at people whose budgets can't quite stretch to the all-conquering SE535s, but who want better sound quality than that offered by the entry-level SE115s. You can expect to pay around £180 for the SE315s.
The Shure SE315 earphones offer clear and well-balanced sound that will almost certainly put a grin on your mug. They're not exactly cheap, though.
Excellent sound-isolation capability; generally great sound quality.
Take a while to put on; expensive.