"it is also crucial to our effort to meet the growing patient demand for pediatric and adult health care along the entire pacific rim." as war as i know, flat caps come in different fabrics, including cotton and lightweight wool - those are specifically made to be worn during spring an summer. make reference to your concept art. this hilly city can be a bit hard on the old pins so jump on board and let the driver do the hard work! they are well aware of the fabric type once they inspect it and apply the right cleaning method. 