You'll chill in them, take walks around the block in them, tackle long-haul flights in them—these lounge pants are that good. They're made from a soft, warm waffle knit with a stretchy high-rise waistband, a laid-back (but not loose) fit and cozy ankle cuffs. Side pockets and a tonal Alo patch round it all out. And for cutest results, pair them with the matching bra and mock neck shirt.