Men's Superlamb I-Bex Boots Superlamb's Ibex Boots are named after the massive wild goats of Mongolia and we mean it when we say it doesn't get much more rough and tumble than the Ibex and these boots reflect those characteristics perfectly. Not only are the Ibex boots durable, they're also built with comfort in mind. These rugged boots come with two pairs of swappable insoles: one for fall/winter made from 100% sheepskin fleece and are 100% washable and one for the spring/summer made from breathable performance mesh so every step can be taken in not just confidence, but comfort too!