Best place for cheap exercise gear? Running / gym

[Missanneshirley]

I'm currently working on an exercise "wardrobe " of 1 or 2 outfits - it's all starting to smell
Where could I get a few more basics on a really tiny budget? My current legging things 3/4 length were from aldi and they are great but their special buy stuff is quite unpredictable in terms of what might be in stock. My the shirt and sports bra are from h&m and I LOVE them buy they came to about £30 in total at the time I bought them and that is above current budget!
I mainly run and go to the gym (not loads) - some cycling too - so just looking for some interchangeable shorts / leggings / vests that would do for all 3 - is there any where that sells half decent stuff cheaply? Thanks!