Abstract: The present invention relates to a crotch liner for cycling tights and shorts of the type comprising a first portion (2) designed to protect the cyclist's perineal and ischial area and a second portion (3), positioned in front of the first portion, which is designed to protect the user's genital area, wherein the said first portion (2) is, in turn, subdivided into a plurality of sectors which comprise a pair of first pads (20), positioned at the point of contact between the buttocks and the saddle, and a second pad (21) with a Y-shaped configuration, which is positioned at the point of contact between the rear portion of the scrotum and the saddle and forks out around the external lateral ends of each of the first pads (20).