Lake MXZ21 Wide Fit Winter MTB Boots Engineered with a wider fit than standard, and featuring a carbon fibre midsole and real rubber Mountain Competition sole, the MXZ21 Winter Boots deliver exceptional power transfer to your pedals while maintaining superb traction on slippery terrain. Whether you’re climbing muddy inclines or shouldering your bike on a winter hike-a-bike section, the larger tread blocks and secure MX Competition Last ensure stability, grip, and comfort. The refined fit - a snug heel and roomy toe box - provides race-level responsiveness without compromising natural movement or warmth, making it the ideal choice for performance-driven riders. The MXZ21’s windproof, water-resistant soft-shell upper, featuring Clarino microfibre construction, offers both durability and breathability. Reinforced with a seam-taped membrane barrier and DWR (Durable Water Repellent) coating, these boots withstand rain, mud, and grit while preventing water absorption. The adjustable speed-lace system ensures a secure fit and quick adjustments on the go, ideally suited for long winter rides. Regular DWR reapplication keeps them performing season after season, ensuring that when the weather worsens, you stay focused on the ride ahead. Care: The uppers are treated with a durable water-resistant (DWR) coating that will wear away over time. Lake recommend reapplying a DWR spray 1-2 times a year for moderate riders and every 2-3 wet rides for daily riders. Pedal Compatibility These off-road shoes are compatible with MTB and trekking pedal systems that utilise the 2-bolt cleat system, such as Shimano SPD, Look Trekking, X-Track, and Crankbrothers Candy. Find the Right Lake Shoe Size Use the Lake Size Guide to find the correct size shoe for you. Lake claims that over 80% found their perfect fit by using this tool. Check out the Lake explainer on how to measure your foot and watch their helpful video explainer below. Learn more about how cycling shoes should fit with the Sigma Sports guide, and speak to our team online or in store for additional help.