NWT SKIMS Flannel Sleep Long Sleep Set Cypress Plaid Size medium A must-have for winter. Snooze through the season in our 100% cotton flannel set. Oversized for extra comfort, this warm duo features a classic notch collar top and relaxed straight-leg pant with side pockets. Choose from two signature SKIMS patterns, Cypress Plaid and Jasper Buffalo Check. Top has an oversized fit and bottoms have a relaxed fit.