I bought these cotton and hemp shoes for a pittance in Chatuchak market in Bangkok this summer. My sil got the same pair and proceeded to wear them instantly, wearing them thin and lamenting only having bought one pair.
Still voting against closed shoes in the heat of Singapore I put them at the bottom of the shoe cupboard and forgot about them till I was hunting through the shoe pile in the recent Hong Kong cold spell. A cold spell I was grossly underprepared for. These turned out to be the only properly closed shoes I owned when the shivering cold began. I quickly remedied the situation with a few pairs of shoes - closed, black, boots etc. But in the few days while I got sorted these were my saviour. The thin cotton and hemp mix didn't keep the feet warm and they were soaked through the second the rain even threatened to fall but goodness me I was grateful for them in place of my boat like flip flops filling with water!