Blundstone 1391 The Winter Chisel Toe in Rustic Brown. We winterized this boot for total comfort in the coldest months. 100% wool fleece footbed, Thinsulate™ lining, 100% waterproof—even the elastics! Chelsea boot height helps to keep feet dry. Bring on the slush!Premium waterproof leather.Fully waterproof boot with waterproof elastic and latexed seams.Lined with 200 grams of Thinsulate insulation.Thermo-urethane outsole resistant to hydrolysis and microbial attack.Polyurethane midsole for comfort. XRD™ in the heel strike zone to dissipate heel strike shock.Removable sheepskin footbed for warmth and comfort.XRD™ in the heel pad.Extra set of footbeds.Leather lined.