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Swimming in Restraints!? Tight-Fitting Vintage Speedo School Swimsuits, Super Constricted... Who's the JAV actress in this video? Amateur? Name revealed!

In the past, competition in competitive swimwear development led to designs that tightly compressed the body. Products like Speed's "Fastskin Series" even introduced swimsuits so constricting they made breathing difficult. This video documents an experiment testing whether such swimwear—essentially "swimming restraints"—can function as BDSM bondage gear. Using five compression-type competitive swimsuits, the test subjects the swim instructor Kko as the experimental model.