Endura Pro SL PrimaLoft Jacket II Design Philosophy Building on the success of the original Pro SL PrimaLoft® Jacket, this updated version has improved breathability and stretch panels for an even better fit. Lightweight Insulation Two different types of PrimaLoft® fill have been used. 80g of PrimaLoft® Gold has been used on the front torso, maximising insulation exactly where you need it most. 60g of PrimaLoft® Gold fill has been used on the sleeves, cutting down on bulk and 60g of PrimaLoft® Silver Active has been used on the back, giving improved breathability and accomodating some stretch to create a great fitting garment. PrimaLoft® Insulation PrimaLoft® insulation boasts an exceptional warmth to weight ratio, tiny pack size, extremely breathable construction and is highly water resistant making it a tremendously versatile performance insulator. Features Packable, Lightweight Core Body Insulation Lightweight, windproof shell panels with PrimaLoft® GOLD insulation PFC-Free, non-toxic durable water repellent finish Stretch panels on underarm and back for unrestricted movement Triple rear pocket system with zipped security pocket Lightweight internal hem elastic with silicone gripper Ventilation via underarm perforations Subtle reflective details Endura Men's Size Guide XS: Chest 35-37" (89-94 cm), Waist 29-31" (74-79 cm) S: Chest 37-39" (94-99 cm), Waist 31-33" (79-84 cm) M: Chest 39-41" (99-104 cm), Waist 33-35" (84-89 cm) L: Chest 41-43" (104-109 cm), Waist 35-37" (89-94 cm) XL: Chest 43-45" (109-114 cm), Waist 37-39" (94-99 cm) XXL: Chest 45-47" (114-119 cm), Waist 39-41" (99-104 cm)