Pajama Heaven Men's Satin Jaquard Long Sleeve Pajamas Satin Wonderful Soft Satin - feels great on the skin Pants include an elastic Waistband Sizing Runs as follows: Small (chest 34-36"/ waist 29-31"), Medium (chest 38-40" / waist 32-34"). Large (chest 40-42" / waist 36-38"), XL (chest 44-46" / waist 38-40").