• Protection Level 3
• Designed for both hardshell and softshell style boots.
• Blend of Thermax® with merino wool and acrylic for wickability combine maximum comfort, warmth and dryness, plus extra-long wear.
• 30% wool, 54% acrylic, 14% nylon, 2% spandex.
• Length 17 in.
• Wt. 5 oz.

Thor•Lo's Protection Levels
Three simple level designations will help you to pick the Thor•Los that are right for your activity. Both thickness and density (padding) have been taken into consideration when assigning Level of Protection to each Thor•Los style. Each style features padding engineered to protect your feet for the intended usage.

• Protection Level 3 - Maximum protection for the most rugged and challenging activites and weather conditions.
• Protection Level 2 - Moderate protection for those activites that are somewhat strenuous but are not of long duration.
• Protection Level 1 - Minimum protection for those activities that range from casual/leisure to 'walks in the park'.