Care Instructions:100% machine washable (keep temperature below 30C)Air or line dryMeasurements:Pair-weight: 0.7 lb. (using smallest size as reference)To find the best fitting size using your foot length, refer to the RockDove size chart: scroll up, find the size dropdown, and click on "Size Chart" to its right.About RockDove Footwear:We're a local Santa Monica, California based shoe repair shop that's grown into a full-fledged slipper brand since 2002. We're focused on slippers and nothing else - nothing to distract us from keep making the most comfortable slippers in the worldWe never let bad sizing get in the way of a good slipper wearing experience; with RockDove's Guaranteed to Fit Policy, whenever you get a slipper that doesn't fit, we'll get it replaced quickly and at no extra cost to you.We strive to have comfort down to a science by constantly tweaking our proprietary memory foam insole technology, which is the secret ingredient found in all of our superbly comfy, ahh-inducing footwear.We're committed to making slippers that last, breaking the conventional 6-12 month life expectancy for a pair of slippers. This is achieved by sourcing quality materials, and also making every pair machine washable; you can easily clean them and they'll come out like-new after every wash.