PROBLEM TO BE SOLVED: To provide a male function improving implement having favorable wearing feeling and effectively preventing or reducing the prospermia by preventing firm tightening of the glans more than necessary, having high moisture absorbency, and preventing deterioration in friction force between the glans surface and the implement.SOLUTION: A male function improving implement 1 is configured by integrally forming a glans covering part 11 having a shape covering the penis glans 201 in erection, and a root covering part 31 having a shape for covering a root 203 of the penis 200. The glans covering part 11 and the root covering part 31 are formed of a cloth having moisture absorbency and elasticity. The root covering part 31 is wound around, from an end part 37 side thereof, a wearing assist ring 100 having a ring shape and formed by providing a removal part 101 at a part thereof.COPYRIGHT: (C)2014,JPO&INPIT【課題】亀頭部を必要以上に強く締め付けることがなく、吸湿性が高くて亀頭部表面との間の摩擦力が低下することもなく、これらのことから装着感触が良好で且つ効果的に早漏の防止又は軽減化を図ることができる男性機能改善用具を提供すること。【解決手段】勃起時のペニス亀頭部201を覆う形状の亀頭部覆い部11と、ペニス200の根元部203を覆う形状の根元部覆い部31とを一体に形成してなる男性機能改善用具1である。亀頭部覆い部11と根元部覆い部31を吸湿性及び伸縮性を有する布によって形成する。さらにリング形状であってその一部に離脱部101を設けてなる装着補助リング100に、根元部覆い部31をその端部37側から巻き付ける。【選択図】図1