Adapting our timeless chukka silhouette with twin gore for easy entry and a refined finish, the Neumel Chelsea combines premium materials and effortless style. Made of rich suede, it's lined in our UGGplush™ wool blend and finished with a durable Treadlite by UGG™ sole – offering lightweight comfort and a flexible feel wherever you go. Treadlite by UGG™ Proprietary compound which increases cushioning and traction for a supremely lightweight, ultra-durable sole. SugarSole™ The sugarcane in our SugarSole™ foam allows us to reduce dependency on fossil fuels by replacing petroleum-based ethylene, absorbing 1.6 pounds of CO2 for every pound of ethylene replaced.