GREAT FOR SWEAT - Our 3mm insoles are made of a latex foam and activated carbon. Do they neutralize perspiration? through the cotton layer to keep your feet cool. NON-SLIP SMOOTH - The inner foam and the cotton above ensure perfect support and comfort in your shoes and for your feet. They are comfortable and you won't slip. BETTER PLANTAR HYGIENE - The neutralization of sweat thanks to activated carbon prevents the formation of germs. This ensures better hygiene in the shoe. NO NEED TO CUT - You don't need to bother? cut out our soles. They are available in 14 sizes, from 35 to 48: they are ready to go. be used! GIFT IDEA - No one wants feet with a bad odor. Our sweat-wicking insoles are a practical and useful gift for those with a tendency? sweaty feet.