I love this 50s halter neck from Topshop

I really love this halter neck dress from Topshop. It's £25 in the sale and seems a bit 1950s. I want it but can't find it anywhere!

I know I could order this online but I really don't like ordering clothing online! This is of course, my problem not theirs! I just don't suit a lot of 50s inspired shapes in clothing and I would be afraid that I wouldn't suit this one. Typical