Wonderful, the Wonderwelly from Fitflop. Using the science of biomechanics, these boots are set out to become the world's most comfortable welly. With a contoured insole for natural alignment, impact-absorbing honeycomb cushioning heel and high-rebound 'springboard' ridges at the forefoot, these wellies support you with every step and through every muddy puddle. Womens Fit Flop Wonderwelly Short Boots in navy. - Natural Rubber Mix upper. - Pull on fastening. - Wonderwelly Technology. - Slip-Resistant Rubber outsole.