There are differing opinions on this question, but if you like crispy skin, it's so important to leave your chicken legs uncovered. Otherwise, the aluminum will hold in the excess moisture and cause the skin to soften instead of crisping up. The chicken will still taste great, but the texture won't be quite as enjoyable. For the best results (and the crispiest chicken skin), bake your favorite chicken drumstick recipes uncovered and at a high heat.