I used to carry diaper changing sheets when I went out, but I hardly used them. They are reasonably thick sheets. I have stored them for a long time, just gathering dust in the dresser. Please refrain from purchasing if you are nervous about the condition, as they have been stored by a private individual. I measured them with a measuring tape. Size when unfolded: 66cm (length) x 43cm (width) Size when folded: 18cm (length) x 11cm (width) I will send them via Yu-Packet Post, so I will fold them separately from the existing folds.