I’m going to say something I never thought I’d say: I may actually prefer my jeans to sweatpants now. The latest relaxed denim styles have the same easygoing attitude as loungewear, but they look polished enough to wear with a cute sweater, sneakers or even a pair of loafers. Basically, they’re giving my favorite sweatpants some serious competition. I found 13 pairs that make a convincing case for putting the stretchy denim first, from pull-on straight legs and dramatic flares to wide-leg styles with plenty of room to move. They’re perfect for everything from running errands to casual Fridays...