Exclusive designshere at wiggle we39ve worked alongside castelli to bring you a range of exclusive designs that not only bring you superb performance but also stylish good looks something a little bit different to the ordinary but with all the normal high performance features you39d expect from a castelli product thermoflex thermoflex gives you a stretchy layer of cold weather protection its fleecy inside traps a layer of warm air next to the skin while its high stretch gives you an ae