In what is thought to be a first for the travel clothing market, Craghoppers has incorporated an insect repellent in two of its new ranges. The insect repellent used is based on a synthetic version of a chemical called Pyrethroid, which is one of the safest methods of deterring mosquitoes. The treatment was initially developed to kill dust mites, but research showed it had the same effect on a wide range of other insects, including mosquitoes, sand flies, bedbugs and dustmites.