Keep chill time chill in our #1 Cool Nights® pjs thanks to fabric that feels cool on your skin. Style Tip: Pair these pj pants with another Cool Nights® top you love and start building your sleep wardrobe. Details Elastic smocked waist Trim detail on side seam 27 inseam #1 Cool Nights® material feels cool on your skin Pockets 93% Rayon, 7% Spandex. Mix and match pajama pants, shorts, and tops or shop our #1 Cool Nights® pajama sets—a perfect gift for women.