If you are in-between sizes, the brand recommends that you order a half size down. The lightweight yet durable Caterpillar Casual Theorem chukka boot keeps you comfortable and helps reduce fatigue in your feet and legs. Full grain leather upper. Traditional lace-up system for a secure fit. Strobel construction provides superior flexibility and lightweight durability. Breathable nylon mesh lining. Dual-density EASE footbed provides additional shock absorption and underfoot support. Ease - Engineered Comfort is a proprietary foam midsole that is 30 percent lighter, more shock absorbing and more flexible than standard EVA cushioning. Durable T1321 rubber outsole offers superior flexibility. Imported. Measurements: Weight: 10 oz Product measurements were taken using size 11.5, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.