Sjooz found Caterpillar Mens Basis Durable Lace Up Leather Ankle Boots UK Size 8 (EU 42, US 9) on Outdoor Look at the price of 100.03 GBP. When you need a boot that is highly comfortable extremely durable and very flexible the Basis boots from Caterpillar are the perfect candidates. There are lightweight enough to avoid weighing you down throughout your day while still durable and hardwearing enough to weather the elements with ease., Men’s leather boot. FlexFWD outsole for durable superior flex., Nylex sock lining. High cushion foam footbed with cork., Lightweight. Cement construction.