Collonil Classic Gel Imported Made in Germany Collonil Classic Gel - the perfect product to protect and care your fine smooth leather articles . This highly effective waterproofing gel is solvent free based on natural oils or balms and could be applied on leather, nubuck and suede with confidence; will render pristine condition anytime. Highly appreciated after excellent results on wallets, purses, electronic cases ( cell phones, laptops, GPSs, etc...) Provides long lasting waterproofing to all materials.