You'll find yourself reaching for this fleece top every time you need an instant warm-up. Specially designed for our Duke of Edinburgh's Award Collection, Esk is made from insulating, easy-care melange microfleece - the perfect low-maintenance mid layer for any expedition. The half-zip construction makes it easy to slip on and off. Practical half-zip insulator from Craghoppers Duke of Edinburghs Award Collection. Casual Esk is a technical top made from easy-care melange microfleece fabric ¿ perfect for layering on cooler days. Casual, practical Esk is a technical top made from easy-care melange microfleece fabric perfect for layering on cooler days.