The Blundstone 566 Chelsea boot is sturdy and durable. It features premium waterproof leather upper with waterproof elastic and latexed seams. They have thermal Thinsulate insulation that keep your feet warm through the cold season. Removable sheepskin footbed provides warmth and comfort. It has slip resistant TPU outsole that provides good grip. So why not keep your toes toasty with this great boot in wintery days.