DOYLE sail’s manufacture this efficient integrated main sail furlers that makes the packing of the mainsail after flaking an easy operation. The operation is pretty automatic as the lazy jacks capture the sail when it is lowered or reefed and stacks it inside stack pack. The cover opens automatically to hold the falling mainsail. What is left is then to zip the cover and secure the main sail.

Stack pack is attached as an integral part of the main sail system and has been proven the most cost-effective mainsail handling system. Stack pack lies flat against the sail while sailing and functions as a retrofit to the existing sail.  The folds at the base of a reefed mainsail also lie comfortably inside the stack-pack, thus there is no need to tie-off excess fabric with ties. The stack-pack has been designed to protect the sail against harmful UV rays.

The product has been beautifully finished and looks great on the yacht. Stack-pack also works equally well with mizzens, stay sails and other club-footed head sails.

The manufacturer’s website describes the main features of stack-pack as follows:

1. Integrated main sail cover with secure Zipper tail. (no need for sail ties)
2. Subrella cover. (comes in various colors and is customizable with logo or text.)
3. Neatly flakes the sail above the boom. (visibility is greatly improved.)
4. The reef lines move through sail covers. (Easy reefing and no need of tying to the boom.)
5. Attaches to the foot of the main sail. ( The cover and sail can be removed as one single unit for winter storage.)
6. Brummel hooks used to connect the lazy jacks. (no need to retie the lazy jacks.)
7. Existing mains can be used as a stack-pack base. (no need to replace the existing mainsail.)
8. Can be handled easily by a single person.

Doyle recommends the use of its STACKPACK along with the Tides marine Track system to ensure the most smoothest main-sail furling operation. The furling system attributes style and quality to the boat and when sailing, creates a strong aerodynamic effect, being attached to the base of the main sail. The release from the need of sail ties while packing the mainsail makes it an amazing innovation to increase the main sail longevity by manifolds. STACK-PACK system is the best-looking and the best-performing mainsail cover available.