Thinking of buying some for the winter...live in flip flops during the summer and want something easy to slip on my feet. Tend to live in Hush joggers for working from home so casual, pop out to the gym/shops etc in the daytime. Don't want to pay a fortune, say £50 - £70 - which ones are on trend? (I'm 51 by the way, if that's relevant! I'd ask my daughter but hers are all branded platform type stuff!)