Bought these for backpacking/ski hut trips so weight and bulk was an issue. Nice and light (160 grams/5.6 ounces), very packable, snug, not slippery. Noticed the fit was not consistent from one to the other - had to return the first pair because one was a little tight on one big toe. Second pair still had minor fit issues from one to the other - but hey - they are slippers!