Ann Taylor has tropical wool pants with around 85% wool. Some styles have pockets, some don't. Online they are found in the "suiting" section. I'm not sure of the selection in the actual stores, however. Talbot's is another option, although online it doesn't say what the percentage of wool is. Banana Republic has some that are 95% wool, however I don't think they have front pocket, just rear. I have more luck online than in actual stores with petite items, as the stock in the stores is usually not great for petites, at least in my area.