Hi I'm going to be inter-railing this summer. Its going to be hot and I'll have a rucksack. I'm looking for a bomb proof dress that can literally be screwed up and chucked in a bag for the evenings. I'm 56, 5ft 4 size 10 , decent boobs, nothing really above the knee pls. Cheap and needs to be able to be slung in a sink and wrung out to dry over night. Is there such a thing? thank you