Gill OS Performance Jacket Engineered for versatility and performance, the OS Performance Jacket is designed to meet the dynamic demands of offshore sailing. Featuring a smooth-faced thermal fleece and 4-way stretch fabric, it delivers essential warmth and wind resistance without sacrificing mobility—perfect for layering under a shell or wearing on its own in milder conditions. Strategic underarm paneling allows for unrestricted movement during active maneuvers, while zippered hand and chest pockets provide secure storage for essentials on the water. A reversed coil YKK zipper with an inner chin guard enhances comfort and durability, and stretch binding at the collar, cuffs, and hem ensures a snug fit that helps retain heat. Whether you're grinding through an upwind leg or trimming sails on a brisk morning, the OS Performance Jacket delivers the thermal protection and technical performance to keep you focused, comfortable, and in control. Product Care Machine Wash (30°C). Do not Bleach. Tumble Dry Low. No Iron. Do Not Dry Clean. Do not store wet. Do Not Use Softeners. Fabric Composition 91% Polyester 9% Elastane Features Smooth faced thermal fleece with 4- way stretch and wind resistance. Zippered hand pockets. Zippered chest pocket.Underarm panel cut for greater freedom of movement. YKK reversed coil zipper with inner chin guard. Stretch binding at collar, cuffs and hem for improved fit. Thermal Protection. Men's Size Chart Size XS S M MT L XL XLT XXL XXXL XXXXL Average Height (cm) 5’2''-5’4'' (158-163) 5’4''-5’7'' (163-170) 5’7''-5’10'' (170-178) 6’2''-6’3'' (188-191) 5’10''-6’1'' (178-186) 6’1''-6’2'' (186-188) 6’3''-6’5'' (193-197) 6’2''-6’3'' (188-191) 6’2''-6’3'' (188-191) 6’2''-6’3'' (188-191) Chest (cm) 34''-36'' (87-92) 36''-38'' (92-97) 38''-40'' (97-102) 38''-40'' (97-102) 41''-43'' (104-109) 44''-46'' (112-119) 44''-46'' (112-119) 47''-49'' (120-125) 50''-52'' (127-132) 55''-58'' (140-148) Waist (cm) 28'' (71) 29''-30'' (74-76) 31''-33'' (79-84) 31''-33'' (79-84) 34''-37'' (87-94) 38''-40'' (97-102) 38''-40'' (97-102) 41''-43'' (104-109) 44''-45'' (112-115) 49''-52'' (125-132)
