MATERIAL: Multi-material construction with an advanced poly-fabric textile main shell for excellent abrasion and tear resistance. HYDRAGUARD: protection for durable waterproofing, wind proofing and breathability PROTECTION: CE-certified elbow and shoulder armor. PE back and spine protector. Upper and lower sleeve volume control helps keep your armor in the correct positionLINER: Full removable long sleeve thermal liner for climate control. Features inner pocket and fleece lined back panelFEATURES:: Anatomically correct construction for reduced fatigue and enhanced riding comfort. Aqua-Guard Waterproof zippers on vents. Internal waist connection zipper to allow attachment to FLY riding pants. Reflective panels for improved rider visibility. MENS BUTANE JACKETS SIZING CHART SIZES SLEEVE CHEST SMALL 31"-32" 34"-35" MEDIUM 32"-33" 36"-38" LARGE 33"-34" 40"-42" X-LARGE 34"-35" 44"-46" 2X-LARGE 37" 48"-50" 3X-LARGE 37" 52"-54" 4X-LARGE 37" 56"-58"