They're the super-cozy, all-weekend jammies you remember from childhood, with a traditional drop-flap seat in back, button front, elastic cuffs, and full foot coverage - all sized for grown-ups who'll appreciate them like never before in the chilly seasons ahead. Soft 100% cotton flannel. Machine wash. XS(95-130 lbs.), S(110-150 lbs.), M(135-170 lbs.), L(160- 200 lbs.), XL(180-235 lbs.).