I am making a lap quilt that I envision will likely be used as a stadium blanket. Obviously I can't choose how it will be used, as it is a fundraiser item, but I plan to label it as a stadium blanket, having the UW logo. I want to know what would be best, seeing as it may get rained or snowed on, that would dry quicker or hold up to washings. I am thinking poly or 50/50, but need advice cuz I'm just guessing. I just remember they told us not to wear cotton when rafting cuz it stays wetter and clingier... thanks in advance for the suggestions!