Shop similar pairs from $33Credit: Monica Schipper / WireImageJennifer Aniston has spent years loyal to skinny and slim-fit denim, so when she stepped out in a pair of wide-leg jeans, it caught our attention. The looser cut isn't just a style update — it's a practical one, offering more room to move and breathe, which makes it a smarter pick once temperatures climb.She's not the only one making the switch. Taylor Swift recently wore a similarly …