Arctic Shield Boot Insulators Medium (8-9) Black Retain heat retention technology for maximum warmth;Polyester outer shell and liner;Windproof and water-resistant;Lightweight and packable;Rolls up to fit in your pocket or backpack;Ideal for wearing over boots for added insulation;Choose the next larger size if wearing over thick, heavily insulated boots;Retain heat retention technology;Polyester outer shell and liner for durability;Windproof construction for added warmth;Water-resistant design for wet conditions;Lightweight for easy portability;Packable design rolls up to fit in a pocket or backpack;Choose the next larger size if between sizes or wearing over heavily insulated boots;Available in sizes: Medium(8-9), Large(10-11), X-Large(12-13)table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 5600 Product Group Code: 5600C Product Sub Group 1: 5600C3 Inactive: No