Gimo WP is: Made from recyclable SEBS rubber, which in turn comes in part from BioplasticFree from PVCGuaranteed free of fluorocarbonsMolded in one pieceLight on the foot and durableEquipped with extendable and washable lining in warming wool blend, machine washable at 30 °Easy to jump in and out ofA good complement when the weather is cold, wet, and sloppyThe boot can be washed in the machine at 30C Note: Rubber boots are best used as a complement in cold, wet, and rainy weather. If they become damp inside, remove the loose lining and dry it separately, as rubber does not breathe. Do not tumble dry! Tip! Complement your boots with an extra inner sock. Perfect if the regular inner sock gets damp or needs to be washed. If you want to use these boots without lining, then complement them with our Original Woolblend Insole. Note that the inner dimensions increase without the lining, by approximately 10-15 mm.