Hemp Sandals

I just got Rainbow sandals today and I hear only wear them on the beach weres those of hemp, because sand stretches between them or something. Is this true? If not, can you tell me how I can clean them?

I found lots of information on sandalsinfo.com, including how to wear

Hemp is a fiber so that you do not want to wear on the beach. The grains of sand will get into the field sandals are made and eventually they will collapse. Normally sneakers are worn by hippies, so you should wear a shirt with tie-dyed, one of those great swirling skirts that girls wear hippie, and large gray wool socks with red patches on toes and heels.

haha ... I like the answer hippie ... I agree that the sand could be a bit articles.