EXCLUSIVE AT MR PORTER. Finished with a polished horn button, these Mr P. shorts are a smart, easy-going style that look great with a shirts and tees alike. The breathable linen and cotton-blend fabric is a comfortable choice for the warmer weather. Shown here with Mr P. shirt, Mr P. sneakers. Explore the world of Mr P. – – Navy linen and cotton-blend – Belt loops, three pockets – Button and zip fastening – 52% linen, 48% cotton; buttons: 100% horn (buffalo); lining: 100% cotton – Dry clean – Imported- For Men.