You can order the size you normally wear if you like the relaxed fit, but if you need a slim fit, consider buying a smaller size. Loose and roomy fit: designed with wide leg, cool and comfortable to sleep in. We suggest you wear boxer underwear under these pajama shorts when you lounge around the house. Features: elastic waistband, good length as the shorts hit above the knee. No fly opening. Breathable and quick drying. Easy care: Material: 100% polyester satin (luxurious lightweight fabric with soft and silky feel). Care instructions: Machine wash below 104.0 °F. Iron at low temperature. Occasion: cozy and casual for evening wear or a lazy weekend at home. Great for sleepovers, dorm rooms, vacations or a relaxing night in.