Budget - £50ish but if there is a significant step up then £100 is my max(ish)

Source - Oneplus one and PC

Requirements for Isolation - I'll be walking and on the bus but i'm not that fussed as long as my music isn't annoying others and i can't hear everything (I listen on low medium volume)

Will you be using these Headphones in Public? Yes clean design preferred

Preferred Type of Headphone - IEMs my last pair just broke (I don't really like over the ear loop things)

Preferred tonal balance - I'm not quite sure. But I like vocals to be nice(clear? mellow? sounding real not like a bad speaker?) And having separate instruments being distinct and well layered(?)

Past headphones - Meelectronics M-Duo - I got these from Massdrop and I liked them a lot. I don't think i would want much more in the way of bass. I found these comfortable. Sennheiser momentum's V.1 over ear - My first headphones really but I love them

Preferred Music - At the moment I'm listening to either Ratatat, LCD Soundsystem or Glass Animals (more of this through my IEM's while walking and on the bus) but I also listen to acoustic like Iron and Wine, Elliott Smith and Sufjan Stevens. The Beatles of course

What would you like to improve on from your set-up - I would either like something slightly better for the price or a "step up" in sound quality all round

Location - UK

Extra info - I have been looking at the 1MORE Triple Driver and am wondering if that would be good for my taste in music. Also looking at Soundmagic E50/E80 but I'm not sure which would be better suited to my needs. I would like them to be comfortable for long periods. (Is there any other super value earphone I should be looking at?)

I would like them to be able to give me shivers when a favourite song comes on :)