What type of clothing/footwear should I bring for a mule trek or a 4×4 tour?
You can relax and wear whatever is familiar and comfortable. Morocco is very tolerant and welcoming to visitors, you are not expected to act or look like a Moroccan. Hiking shorts and T-shirts are fine for men. For women it is a good idea to bring a scarf to cover bare shoulders in the rural villages. Shorts are not really acceptable for men or women unless they are around knee length. If you choose to dress with skin showing, the people in rural areas are basically shy and will react with a muffled laugh or cover their eyes if they are embarrassed. City dwellers often dress as we do.