How to use: Put on these boots using the Boa M4 Fit System for a quick and custom fit. You can easily swap the soles of the OmniTrax 3.0 system according to different terrains or weather conditions. Whether you're ice - fishing or snowmobiling, they'll keep your feet warm and dry. Note: These boots are only available in whole sizes. Make sure to choose the right size for a comfortable fit. Avoid wearing them in extremely hot conditions as they are designed for cold weather. Maintenance: After use, clean the boots with a soft brush and mild soap if they get dirty. Let them air - dry naturally. Check the interchangeable soles regularly for wear and tear and replace them when necessary.