What type of clothing do they wear in Peru?
Same as you. Actually a large amount of the cotton clothes seen in the US are made in Peru (Cacharel, Polo, Armani, etc.) There are a few local things, like for example: Ponchos. (Yes, like the ones you use for the rain) Ponchos are made of Alpaca wool and used in the high altitudes. You won’t see many in the coast, but you’ll se a lot of them in the Andes.