Often fishing is done early in the morning and in the winter when it is really cold. This means that it is extremely important to layer up with warm clothing. Often this will just mean lots of warm layers, but it can be wise to have a really good base layer. This is where these thermals can really come in handy and work really well. We have picked out a selection of thermals which we think will be really good to use when fishing, that will keep everyone warm even in the most extreme of weathers when it is really cold!