Giesswein Womens Berg Wool Strut your stuff in the comfy Berg slipper by Giesswein&reg;. Boiled wool upper. Easy slip-on style. Boiled wool lining. Removable insole with arch-support. Non-marking, latex-dipped, rubber outsole. Measurements: Weight: 7 oz Product measurements were taken using size 40 (US Women's 9), width M. Please note that measurements may vary by size.