The Brenva make a great lightweight mountaineering boot that will reliably excel in a range of conditions. With a weight of 790g per boot (Size 42), the Brenva offers the quality and features of top-of-the-line mountaineering boots but within a relatively lightweight package. To achieve this, the upper is made from microfibre with a GORE-TEX Insulated Comfort membrane. Ensuring that not only is this boot waterproof, but retains heat and resists water penetration in humid conditions.  The Zamberlan® Technical fit and the elastic gusset ensures that the fit of this boot is comfortable but your feet are securely locked in place. The insole is well-positioned to offer good reactivity and flexibility while the dual-density PU wedge provides great cushioning with durability. The boot is also compatible with semi-automatic crampons. Product Code: FWBOL2TI0597 Men's Brenva GORE-TEX RR Mountaineering Boots | Mountaineering Boots UK