Stretching rubber boots is a simple but effective way to make them more comfortable and to prevent blisters. It can also help to extend the life of your boots by preventing them from cracking or splitting.
There are several methods that you can use to stretch rubber boots. One common method is to use a heat gun or hair dryer to warm up the boots. Once the boots are warm, you can then stretch them by pulling on them or by inserting a boot stretcher. Another method is to fill the boots with water and then freeze them. Once the water is frozen, the ice will expand and stretch the boots.