Private Structure Bamboo Spectrum Trunk Cold Gentle Machine Wash, No Bleach, Low Tumble Dry, Cool Iron, No Dry Cleaning. 95% Bamboo Rayon / 5% Spandex Cold Gentle Machine Wash, No Bleach, Low Tumble Dry, Cool Iron, No Dry Cleaning. Small Waist: 28-30", Medium Waist: 31-33", Large Waist: 34-36", Extra Large Waist: 37-39"