Walking in nature is beautiful - my feet are in tights and flip-flops. The weather is great and I like it when my feet slowly start to sweat. So after a while I take off my slippers and continue on the dirt road with bare nylon feet. Feeling every stone under your soles is very erotic and arousing. Also, the floor is still a bit damp in the early morning and soaks my nylon. The soles of my feet will certainly be nice and dirty - which doesn't bother me. Walking barefoot is already very great and strengthens the feet. Then I walk on in my flip-flops.