(Pack of 4) Mens Sleepwear - Silk Couture Boxer Shorts / Pajama Shorts You will receive 4 mens silk boxer shorts - colors as pictured. Made of a superior fabric: 90% silk & 10% micro-fiber. Fabric covered elastic waistband for added comfort. Flyless boxer; Center back seam for a more defined fit. The micro-fiber element of the fabric provides structure to this silk garment and increases its lifespan.