Croslite is a great shoe material for hot climates - minimal sweating, no shoe or foot odor. If they get dirty, just hose them off or wipe dirt off with a damp cloth. I have been throwing crocs in the washing machine for years, without affecting their looks. They air dry in minutes. If they need stretching a tad in the toes area (because they only come in whole sizes), take an old sock, and cut off the sock at about the ball of the bottom of the foot. Put your crocks in a warm dryer for a couple of minutes (directions for how long are on the Crocs site, I think). Then remove the crocs and slip them on over the little cut-off toe footies while warm. In just minutes, they will stretch subtly, just enough for barefoot comfort for me. I don't need the instep stretched, and I have narrow heels, hence the reason for not using whole, uncut socks for this adjustment. If one needs to stretch those areas, don't cut the sock. Just put the entire pair of socks on, heat up the crocs a couple of minutes in the clothes dryer, slip them on over your socks, and presto, no blisters. They are now ready to wear bare-footed. Love, love, love crocs, for painful bunions, plantar fasciitis (I can get foot orthotics in many styles), neuromas, you name it.