Cruising Upwind Sails

Cross-cut Woven Polyester Sails

Cross-Cut Sail Construction

Quantum's woven polyester mainsails and headsails (CW 2000) set the standard for cross-cut construction, bringing an unmatched level of refinement and attention to detail to the basic workhorse of the cruising inventory. Durability, ease of handling and performance are equally weighted design criteria.

Designed for Maximum Control

When it comes to boat handling and sailing enjoyment, it’s sail shape that makes the difference. Sail shapes are custom-designed for your boat by Quantum’s experienced sail designers based on expected usage and boat-specific constraints such as mast bend, displacement and righting moment. Sail shapes feature a smooth, flat aerodynamic profile for optimum upwind performance, with an open trailing edge to reduce heeling and weather helm. The shape allows sailing into a higher range of wind conditions before reefing becomes necessary.

The Right Materials for the Job

Quantum's woven sails are made using only the highest quality, tightly woven and most stretch resistant woven polyester available. Minimizing stretch is the key to creating a durable sail with exceptional shape holding. All woven materials are not created equal; there are variations in yarn type, thickness, weave and finish. We test and use only top-grade sailcloth, appropriate to the application, selected from the best that leading suppliers have to offer. Quantum's sailcloth is tested in-house. This allows Quantum to not only use the very best, but also make sure the fabric is appropriate to the application.

Built to Take On the Most Ambitious Sailing Plans

Quantum's woven polyester cruising mainsails and headsails deliver long-lasting durability. Our modern, cross-cut construction features panels joined with extra wide seams, using a combination of adhesives and multiple rows of triple-throw stitching, with additional "butterfly" reinforcements at both the inboard and outboard ends. See below for more high-quality construction details.



Cross Cut

Cross Cut

Cross-cut sail made with only the highest quality woven polyester sailcloth. Tight weave, high-tenacity yarns and maximum stretch resistance for best shape retention.

Boat Size

50 ft / 15 m or less


Woven polyester


Sail Construction Details

When it comes to sail quality, small details make a big difference. Excellence and attention to detail are hallmarks of every Quantum® sail and ensure reliable performance. Click on photos for more information.

Headsail Clew

Our oversized, tear-drop-shaped corner patches minimize stretch and improve durability. The leech cord is contained in a separate protective pocket with multipart purchase for ease of adjustment.

Furling Headsail Clew

High-strength, non-corrosive stainless rings with Spectra chafe guard are anchored with webbings. This furling headsail features webbings and a protective pouch for the leech cord wrapped in Sunbrella® fabric to prevent UV damage—a feature which provides ultimate durability.

Furling Headsail Tack

Extended patching on the tack adds strength for partial furling. Roll-to reference marks ensure repeatable settings. Tack webbings replace standard rings to allow for easier furling. A foot cord prevents flutter.

Telltale Window

Telltale window and multiple sets of telltales aid trim and steering. The tapered foam luff on furling headsails provides luff tension for better sail shape when partially furled.

Furling Mainsail Clew

The oversized clew block provides maximum strength and minimum outhaul friction for in-mast furling. The leech cord lead around the clew and along the foot optimizes access for easy adjustment (can be installed to go all the way to the tack). The UV cover protects the furled sail from harmful sunrays; even the clew block webbings are completely covered to ensure long-term reliability and guard against sun damage.

Mainsail Head Details

Quantum’s cruising mainsails feature an aluminum headboard fitted with webbing and reinforced stainless steel rings (not rivets) for strength, smoothness, weight savings and durability. The luff hardware, with double luff tapes and extensive “quilting” throughout the head section provide strong, reliable attachment in one of the most highly-loaded areas of the sail.

Mainsail Batten Pockets

The batten receptacle and slide are attached to the inboard end of a full-length batten pocket with a stainless steel universal joint to insure easy hoisting and lowering while minimizing pocket maintenance. Double luff tapes and oversized reinforcement under the receptacle provide ultimate strength and reliability.

Overhead Leech Cord

The leech cord, rigged over the head and down the luff, allows for easy access at the tack.

Mainsail Tack

The mainsail tack features a webbed-in, stainless ring for simple, elegant attachment and a standard cunningham and foot cord (on loose-footed mainsails).

Mainsail Luff Reef

The luff reef features stainless steel rings. Extended webbings and a webbing handle make it easier to pull down and secure a reef tack.

Mainsail Leech Reef

Our mainsails feature oversized, multi-layer reef patches with quilted stitching for maximum strength and a smooth, flat, sail shape when reefed. The stainless steel rings, reinforced with webbing, provide reliable service for the long haul. Separate aluminum leech-cord cleat with hand stitching.

Mainsail Full Batten Details

Batten inboard fittings, with webbed-on slides, prevent battens from pushing into the mast, reducing chafe and wear. Open-pocket architecture ensures proper batten fit and allows removal of a broken batten.
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