An stretchy shirt is a must-have for everyone. Though it's hard to find the ultimate piece. This Robert Friedman item comes really close to perfect: the elastomer gives it a fabulous fit. 75% cotton, 23% polyamide, 2% elastomer. Machine wash 40° Length size S: ca. 69 cm. (measured from collar/shoulder seam down) Long sleeve, buttoned cuffs. Button fastening though front. M5E92 RH3102