Helmet

A helmet comprising:

• an anti-glare visor that decreases intensity of light;
• an outer shell that includes a front surface having an opening;
• an operation mechanism that includes a sliding member movable between a first operation position and a second operation position along an outer surface of the outer shell in an operation direction;
• a support mechanism fixed to the outer shell, wherein the support mechanism supports the anti-glare visor so that the anti-glare visor is pivotal between an anti-glare position and a non-anti-glare position;
• a transmission cable connected to the sliding member and the support mechanism, wherein the transmission cable transmits an operation force directed toward the first operation position to the support mechanism and pivots the anti-glare visor to the anti-glare position, and the transmission cable transmits an operation force directed toward the second operation position to the support mechanism and pivots the anti-glare visor to the non-anti-glare position;
• and
• an accommodation portion that accommodates the operation mechanism, wherein the accommodation portion is located in the outer surface and defined by a recess including a closed bottom and extending in the operation direction, and the recess includes wall surfaces that intersect with the outer surface of the outer shell, and one of the wall surfaces located at an end of the accommodation portion in the operation direction defines an end surface including an insertion hole that extends through the outer shell for passage of the transmission cable, wherein
• the operation mechanism further includes an inner cover that covers the transmission cable and the sliding member from an inner side of the recess,
• the inner cover includes a guide surface opposing the transmission cable, and
• the guide surface includes a lead groove extending in the operation direction to guide the transmission cable from the sliding member toward the insertion hole.