Available only from Hammacher Schlemmer, this is the two-piece set of button-down pajamas made from bamboo, sought for its silky softness, luxurious hand, and resilient durability when made into a fabric. With natural benefits not common to other fabrics, including perspiration-absorbent and sensitive skin-friendly properties, bamboo fibers are also made with microscopic gaps that provide superior temperature regulation to keep you cooler in warm weather and warmer in cool weather. Both made for a relaxed fit, the long-sleeved top has a stand collar, buttoning placket, breast pocket, and shirt-tail hem while the full-length pants have an elasticized waist and side-seam pockets. Grey. Men's. Sizes M-XL.