Thunder Pro GTX

The Thunder Pro GTX excels for fast, stable movement over rough terrain and multi-day outings with heavy packs. The secret to the Thunder Pro's comfort is Zamberlan's new Active Heel Pad (AHP) construction, which strategically positions a low-density PU insert pocketed within the heel of the insole. This transfers impact of the heel with the ground directly to the sole for continuous cushioning, reducing wear on your joints. The Thunder Pro derives its toughness from durable, Hydrobloc-treated Perwanger leather uppers, lined with GORE-TEX waterproof-breathable membranes. For support in off-trail, rugged terrain, the soft collar protects the ankle, while PU toe and heel rands shrug off rocks and brush. Because every ounce adds up over long trips, the Thunder Pro uses a lightweight Vibram Junko Lite outsole with Megagrip for maximum traction with minimum weight. For serious hikers, backpackers, hunters, and adventurers seeking maximum durability and support in a lightweight package, the Thunder Pro GTX is the ultimate choice.

• Cushioning, support and flex in a light build
• Best for: backpacking and hiking
• Weight: 590g
• Boot height: 8"
• Flex rating: light hiking boot, softer flex with some structure, ideal for day hiking
• Cushioning: balanced for all-around comfort and support, absorbs impact without sacrificing stability, ideal for most hikers and a wide range of trails, from day hikes to light backpacking
• Terrain: hiking trails and off-trail
• Fit: X-Active Fit
• Last: regular
• Upper material: Hydrobloc Perwanger leather
• Upper thickness: 2.0mm - 2.2mm
• Foot protection: PU toe and heel rand
• Lining: GORE-TEX ePE Performance Comfort
• Lacing: traditional
• Midsole: recycled EVA wedge
• Insole: 2.5mm nylon + low-density PU insert + PE
• Outsole: exclusive Vibram Junko Lite Megagrip
• Country of origin: Italy
• Continuous cushioning for long adventures
• Active Heel Pad (AHP) technology positions a low-density PU insert directly under the heel, surrounded by higher-density PU, transferring ground impact to the sole and providing superior cushioning for all-day comfort.
• Tall Perwanger leather uppers for durability and stability
• 8" tall uppers are made with the best Perwanger leather for unparalleled support and longevity on rough terrain. We add protective PU toe and heel rands to further enhance durability.
• EVA midsoles and Vibram Junko Lite outsoles with Megagrip compound shed lots of weight for fast-moving adventures without compromising grip
• Weather-ready for all conditions
• Hydrobloc treated uppers and GORE-TEX Performance Comfort membranes, guaranteed waterproof-breathable performance
• Resoleable, built for the long haul
• Made in Italy, resoleable with original Vibram outsoles for a lifetime of use
• True to size fit
• Slightly narrower fit than Backpacking Fit boots, runs true to size (do not size down)