I am new to the running world. I have been training for a half marathon for about 4 months now and will be running my first here in 3 weeks. I am looking for suggestions on a good pair of running shorts that won't ride up in the crotch. I am 5'4'' and currently 150 pounds. I have larger thighs and they do tend to touch a bit towards my crotch. I would like to find a great pair of spandex shorts that don't ride up so I can complete my half marathon without the dreaded chaffing or having to pull them down every so often. Any suggestions would be extremely helpful. Thank you in advance.