A silicone boot having a mounting structure for a constant velocity universal joint, comprising: a boot band (69;70), which is fitted into a fitting groove (82;75) of the silicone boot, and is decreased in diameter while being attached into the fitting groove (82;75), to thereby fix the silicone boot, wherein: the boot band (69;70) is formed into an annular body not provided with a folded-back portion; and a no-interference structure means for preventing interference caused, when the boot band (69;70) is decreased in diameter, between axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69,70) and bottom end portions (82a,82b; 75a,75b) of the fitting groove (82;75) corresponding thereto, wherein the no-interference structure means is constituted by the axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69;70) being bent to a radially-outer side thereof, or wherein the no-interference structure means is constituted by the axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69;70) being curved to a radially-outer side thereof, and/or wherein the no-interference structure means is constituted by a circumferential groove being formed in the bottom end portions of the fitting groove (82;75). a boot band (69;70), which is fitted into a fitting groove (82;75) of the silicone boot, and is decreased in diameter while being attached into the fitting groove (82;75), to thereby fix the silicone boot, wherein: the boot band (69;70) is formed into an annular body not provided with a folded-back portion; and a no-interference structure means for preventing interference caused, when the boot band (69;70) is decreased in diameter, between axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69,70) and bottom end portions (82a,82b; 75a,75b) of the fitting groove (82;75) corresponding thereto, wherein the no-interference structure means is constituted by the axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69;70) being bent to a radially-outer side thereof, or wherein the no-interference structure means is constituted by the axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69;70) being curved to a radially-outer side thereof, and/or wherein the no-interference structure means is constituted by a circumferential groove being formed in the bottom end portions of the fitting groove (82;75). the boot band (69;70) is formed into an annular body not provided with a folded-back portion; and a no-interference structure means for preventing interference caused, when the boot band (69;70) is decreased in diameter, between axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69,70) and bottom end portions (82a,82b; 75a,75b) of the fitting groove (82;75) corresponding thereto, wherein the no-interference structure means is constituted by the axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69;70) being bent to a radially-outer side thereof, or wherein the no-interference structure means is constituted by the axial outer-peripheral-edge portions (69a,69b; 70a,70b) of the boot band (69;70) being curved to a radially-outer side thereof, and/or wherein the no-interference structure means is constituted by a circumferential groove being formed in the bottom end portions of the fitting groove (82;75).