Viafin Atlas - Inventors of the worlds first artificial retractable foreskin for circumsised men.: "The SenSlip is worn on the penis throughout the day, protecting the glans and remaining exposed foreskin from chafing and the elements. Constructed and anatomically formed from the thinnest and finest pre -vulcanised latex and microscopic viscose rayon fibers, the SenSlip has an inner and outer rolling layer to allow natural retraction to expose the glans for urination or cleaning. Like a natural foreskin the SenSlip is specially designed to stay in place all day (it weighs as much as a tissue), and of course it is seamless."