This classic winter coverall has a comfortable cotton lining and is fully insulated with 200g Polyester Insulation. It offers eight functional pockets and YKK® non-sparking spiral zips throughout. 100% brass press studs are covered on the inside, so no brass comes in contact with your skin Two chest pockets with concealed zip closure Two side pockets with hidden exterior-to-interior access and press stud closure Concealed two-way, black zip Concealed leg zippers with flap.