Cool-jams Wicking Button Front Pajama Set (S-2X) Wicks away heat and moisture...great for night sweats and hot flashes Quick Drying- 4 times faster than cotton Super Soft & Lightweight...Feels like cotton! Perfect Travel Pajamalightweight, compact, quick-drying Stays Fresh with Antibacterial feature Wash in cool or warm water on gentle cycle. Never use fabric softener or fabric softener sheets because it will minimize the wicking properties of the fabric. If you accidentally use fabric softeners, re-wash the garment in clear water to remove softener residue, so the wicking properties will return to maximum effectiveness. Lay your garment flat or hang to dry. Tumble drying won&#039;t damage the garment, but can sometimes create static.