If you ever have the opportunity to experience a vacuum sack, I highly recommend it! My lovely friend J made a two-person vacuum sack, which is a divine experience for sure, but on this day my friend Mark from Serious Bondage got his chance to check out the new sack solo. Constructed with very soft and slippery chlorinated rubber, the sack fits everyone perfectly! After Mark slips into the sack, J zips up the air-tight zipper and switches on a small vacuum pump. This slowly vacuums out the air from inside of the sack, creating a blissful equal pressure all over Mark's body. Being a rubberis... Show more