Using the Garmont Tower 3.0 Extreme GTX boots is easy. First, put on the liner boot for comfort. Then, pull on the outer boot and use the BOA twist lock to adjust the gaiters according to your needs. When you're on technical terrain, make sure the crampons fit well in the heel groove for better grip. As for maintenance, after each use, clean the boots with a soft brush and mild soap to remove dirt. Let them dry naturally, away from direct heat. Store them in a cool, dry place. Remember, these boots are for extreme conditions, so don't use them for regular walks. And always check the sole and membrane for any signs of wear and tear before your next adventure.