A kind of adjustable condom,System is provided with ontology and adjusting sleeve,Ontology has around portion,Portion side is provided with head,And head what is provided with storage essence portion far from the another side around portion,And merging space is provided in ontology,Be placed in space system connected ring around portion,Head,Essence portion is stored up,And adjusting sleeve has adjustment section,Adjustment section side is provided with interconnecting piece,Interconnecting piece system connection what ontology is surround between portion and head,Make to be separated out accommodating space between adjusting sleeve and the head of ontology,And it is provided with aperture blowing in what adjusting sleeve,By upper,Water or air can be blown into accommodating space by aperture blowing,The adjustment section of adjusting sleeve is set to be directed away from the another side expansion in head of ontology,When user's what being allowed to use condom,It can be adjusted by set adjustment suitable length and width,Increase temperament and interest of men and women during sexual love,And it is adjusted by the effect of set more can be improved contraception and prevent venereal disease.一種可調整保險套，係設置有本體與調整套，本體具有環繞部，環繞部一側設置有頭部，且頭部於遠離環繞部之另側設置有儲精部，且本體內設置有置入空間，置入空間係連通環繞部、頭部、儲精部，而調整套具有調整部，調整部一側設置有連接部，連接部係連接於本體之環繞部與頭部之間，使調整套與本體之頭部之間間隔出容置空間，並於調整套上設置有吹孔，藉上，可將水或空氣由吹孔吹入容置空間內，使調整套之調整部朝向遠離本體之頭部另側擴張，讓使用者於使用保險套時，可藉由調整套調整適合之長度與寬度，增加男女雙方在性愛過程中之情趣，且藉由調整套更可提高避孕以及防止性病之功效。
