Exterior: 50% cotton / 50% acrylic. Interior: 100% polyester microfleece. Polyester sleeve lining and inner lining. Warm and comfortable materials. 2 pockets and zipped front closure. 2 x 2 rib knit on shoulders, sides and sleeves. Lined 2 x 2 ribbing at collar, cuffs and garment. Invisible side zip for access to side or back customisation.