I have two casual shoulder bags, one from Topshop and one from Next, and they are both well loved (knackered).
I was browsing River Island and I've seen two I like, slouchy and less than £50, both in colours rather than my usual basic black.
This one is green, my favourite colour. I really like it, but please give me honest opinions. I don't want to wear a bag that people think is naff! www.riverisland.com/women/bags--purses/cross-body-bags/Green-zip-trim-messenger-bag-641246
www.riverisland.com/women/bags--purses/leather-bags/Red-leather-and-suede-mix-slouch-bag-638224 but I don't know if a suede mix will be very hardy?