Sneakers ER Midsole Pen in Black. Resurrect your favourite pair of sneakers with Sneakers ER\'s premium midsole paint marker. This acrylic based permanent marker has been crafted in the UK, and don\'t fret it is flexible & water resistant. Directions of use: Shake pen prior to use. If needed clean mideole Apply a thin coat of midsole paint.  Allow to dry for 1 hour. Repeat the process with a second coat. Apply more coats if necessary. Allow to completely dry for 48 hours before use.