Emerson Gear Blue Label Arctic Fox Polar Jacket (Various Colours)The jacket is filled with high density cotton (250g) to ensure excellent torso insulation: while the sleeves use a lighter and thinner cotton (150g) to ensure flexibility of arm movement. The hem and cuffs are in an adjustable design, which can effectively prevent the incoming wind and improve the insulating performance of the jacket. Reinforcement fabrics are added to the design of the shoulders and elbows for better durability. Use of high quality