Men’s briefs Men’s underwear made from rayon / spandex Machine wash Imported Get to the end zone even faster in these sporty men's briefs from the Gabriel Grey Collection. With bold blocks of color in cool tones of grey and blue, the Gabriel Grey Colorblock briefs flaunt your form from front to back. A soft blend of rayon and spandex gives the underwear its body-hugging fit. White seaming provides additional support while also enhancing the impact.