Features of the Keen Women's Elena Oxford Shoe 100% Recycled Pet laces Luftcell PU Footbed for all-day comfort Injected EVA Midsole for surprisingly lightweight Fit and feel Keen. all-terrain rubber Outsole for Higher-traction grip Non-marking rubber Outsole leaves no trace Eco anti-odor for freshness Recycled canvas Upper Breathable, 100% Recycled Pet lining