I wear a size 30 normally, and I'm about 125 pounds. I'm debating on whether to get the size Small or Medium. I do wan't a generally skinny fit, but I've grown out of wanting a REALLY tight fit. I'm not leaning more towards a slimmer fitting pant that still has sag. Something that could be worn with big hoodies/jackets. Which would be better for that, Small or Medium. Please help me out!