How to use: Just put these shoes on like you would with any other pair and start your trail running. Whether it's a cold winter day or other weather conditions, they'll serve you well. Note: Since Norda shoes run small, always take a half - size up to ensure a proper fit. Maintenance: After use, simply wipe the shoes with a damp cloth to keep them clean. Let them dry naturally away from direct heat sources. This will help maintain the performance of the G+ Graphene membrane and the overall quality of the shoes.