The Active Jacket is constructed from Carharrt's hardwearing 12 oz Dearborn Canvas. This fabric is now created from 100% organic cotton - but is just as robust as previous iterations. The canvas fabric will soften with wear, creating a fit that is unique to you. The heavyweight jacket also features a micro fleece lining for increased warmth along with 3M Thinsulate insulation, rib-knit cuffs and a ribbed bottom band. Triple stitched for added durability.