Using your Victorinox knife pouch is a breeze. If you choose the silicone case, simply open it up and slide your pocket knife inside. The leather pouch usually has a flap or a zipper; just unfasten it and place your knife. Attach the lanyard to your bag or use the keyring clip to keep it with your keys. When it comes to maintenance, for the silicone case, you can wash it with mild soap and water and let it air - dry. For the leather pouch, use a leather cleaner occasionally to keep it looking new. Always make sure your knife is dry before putting it in the pouch to prevent any damage. Avoid exposing the pouch to extreme heat or direct sunlight for long periods as this may cause discoloration or damage to the materials.