I bought an m&s one and it’s really tight so I struggled to get it on at first but not sure if the zips just funny as it feels fine now it’s on! It isn’t causing me any discomfort or anything ATM 🙂 it’s the super high impact one, was about £22.50 I think 🙂 mines black and pink but they had others in different colours and different impacts! Someone also posted on here about a nice one on ebay, think you just type in ‘sexy racer back sports bra’ or something and they’re from china 🙂 I haven’t got one of these though so don’t know how much support they give xx