A penis sleeve is a device that fits over the penis for the purposes of modifying its size or ability. A penis sleeve may be used to add length or girth to a penis, to provide different textures or sensations, to act as a prosthetic for those with erectile dysfunction, or to trap blood in the penis to help maintain an erection. Penis sleeves can also help with premature ejaculation because the may reduce sensation to some degree during penetrative sex.
That said, some sleeves are designed to add more sensation for the wearer, so a sleeve should be chosen according to the wearer's needs.
Penis sleeves come in many types, and may be referred to as cock sleeves, cock or penis sheaths, or penis extenders. However, it is important to note that each of these terms have slightly different meanings/uses.
- A penis sleeve typically only covers the shaft of the penis
- A penis sheath tends to cover the whole penis
- A penis extender also covers the whole penis but also provides additional length or width for deeper penetration
Penis sleeves were initially developed as medical devices but many are now sold as sex toys. A 2017 study found that penis sleeves were a useful, low-risk option for people who struggle with erectile dysfunction.