An eartip for an earpiece for use in relation to a human ear, the eartip comprising: a body comprising an acoustic passage, wherein the body is configured to be coupled to an acoustic driver, the body comprising a sealing structure arranged for being inserted into the ear canal, a retaining structure disposed along a plane and configured to engage with external structures of the ear to hold the eartip in position, the retaining structure comprising, when observed when the eartip is positioned in the ear: a first portion forming a loop and having an upper end and a lower end, wherein: the upper end of the first portion is coupled to a top surface of the body and the lower end of the first portion is coupled to a bottom surface of the body; a second portion having an upper end and a lower end, wherein: the lower end of the second portion is coupled to the loop formed by the first portion, and the upper end of the second portion extends from the eartip; the top and bottom surfaces being located on opposite sides of the body in a direction along the plane in which the retaining structure is disposed, in such a way that the retaining structure can perform the functionality of engaging with a lower part of the anti-tragus or the concha of ear, thereby reducing contact between the body and the anti-tragus or concha of the ear, characterized in that the upper end of the second portion is coupled to the loop of the first portion via a first bridging portion that connects the first and second portions. a body comprising an acoustic passage, wherein the body is configured to be coupled to an acoustic driver, the body comprising a sealing structure arranged for being inserted into the ear canal, a retaining structure disposed along a plane and configured to engage with external structures of the ear to hold the eartip in position, the retaining structure comprising, when observed when the eartip is positioned in the ear: a first portion forming a loop and having an upper end and a lower end, wherein: the upper end of the first portion is coupled to a top surface of the body and the lower end of the first portion is coupled to a bottom surface of the body; a second portion having an upper end and a lower end, wherein: the lower end of the second portion is coupled to the loop formed by the first portion, and the upper end of the second portion extends from the eartip; the top and bottom surfaces being located on opposite sides of the body in a direction along the plane in which the retaining structure is disposed, in such a way that the retaining structure can perform the functionality of engaging with a lower part of the anti-tragus or the concha of ear, thereby reducing contact between the body and the anti-tragus or concha of the ear, a first portion forming a loop and having an upper end and a lower end, wherein: the upper end of the first portion is coupled to a top surface of the body and the lower end of the first portion is coupled to a bottom surface of the body; a second portion having an upper end and a lower end, wherein: the lower end of the second portion is coupled to the loop formed by the first portion, and the upper end of the second portion extends from the eartip; the lower end of the second portion is coupled to the loop formed by the first portion, and the upper end of the second portion extends from the eartip; the top and bottom surfaces being located on opposite sides of the body in a direction along the plane in which the retaining structure is disposed, in such a way that the retaining structure can perform the functionality of engaging with a lower part of the anti-tragus or the concha of ear, thereby reducing contact between the body and the anti-tragus or concha of the ear,