This doozy youre ogling is the Rat Pack Shirt from Y.M.C. Its a button-fronted shirt, of the knitted variety, and it looks finer than anything that feeble imagination of yours could conjure up. Truly a shirt worthy of Ol Blue Eyes and his bands namesake. 100% wool. Knitted fabric. Full button fastening. Ribbed collar, cuffs and hem. Regular fit.