Stack type mainsail handling systems have become quite popular for good reason. These systems allow you to integrate a mainsail cover with lazy-jacks which greatly reduces the hassles of raising, lowering and stowing a conventional mainsail. The Ustack is Ullman Sails’ version of the mainsail stack system. We’ve spent years looking at what others have done and developing our own ideas to come up with the best mainsail stack system on the market. Each Ustack is custom designed and built to fit the unique characteristics of your boat.
Some of the unique features of the Ullman Sails Ustack: