Mammut Alnasca IV Low LTH GTX Men
| 40 | 6.5 | 7.5 | 250 (2.5) |
| 40 ⅔ | 7.0 | 8.0 | 255 (2.5) |
| 41 ⅓ | 7.5 | 8.5 | 260 (2.5) |
| 42 | 8.0 | 9 | 265 (2.5) |
| 42 ⅔ | 8.5 | 9.5 | 270 (2.5) |
| 43 ⅓ | 9.0 | 10 | 275 (2.5) |
| 44 | 9.5 | 10.5 | 280 (2.5) |
| 44 ⅔ | 10 | 11 | 285 (2.5) |
| 45 ⅓ | 10.5 | 11.5 | 290 (2.5) |
| 46 | 11 | 12 | 295 (2.5) |
| 46 ⅔ | 11.5 | 12.5 | 300 (2.5) |
| 47 ⅓ | 12 | 13 | 305 (2.5) |
| 48 | 12.5 | 13.5 | 310 (2.5) |
| 48 ⅔ | 13 | 14 | 315 (2.5) |
| 49 ⅓ | 13.5 | 14.5 | 320 (2.5) |
The Mammut Alnasca IV Low LTH GTX Men are low-cut men’s approach shoes designed for confident movement on approaches, hikes, and via ferrata routes. The model combines a waterproof GORE-TEX membrane, a durable Mastrotto suede leather upper, and reliable grip through a Vibram® XS Trek outsole.
The Mammut Alnasca IV Low LTH GTX Men are low-cut men’s approach shoes designed for confident movement on approaches, hikes, and via ferrata routes. The model combines a waterproof GORE-TEX membrane, a durable Mastrotto suede leather upper, and reliable grip through a Vibram® XS Trek outsole.
SKU: 3020-06560
he Mammut Alnasca IV Low LTH GTX Men are built for men who want technical footwear for approaches, mountain hikes, and more demanding terrain. The manufacturer describes them as low-cut, flexible shoes for confident footing during approaches, hikes, and via ferrata routes, with a construction focused on precision, protection, and comfort.
One of the key strengths of this model is its combination of weather protection and durable materials. The shoes use a GORE-TEX Footwear lining for waterproof protection, while the upper is made from durable Mastrotto suede leather that is sustainably tanned in Italy. This makes the model well suited to changing conditions and rougher surfaces without sacrificing comfort.
The Alnasca IV Low LTH GTX Men are designed with a strong focus on precision on technical terrain. The FLEXTRON propulsion plate provides the stiffness and stable support needed for secure, controlled steps on demanding ground. Mammut explains that Flextron enhances stability, energy return, and support on uneven terrain, while the TPU element in the midsole acts like a springboard for added rebound.
For comfort on longer outings, the model uses EVA midsole foam to improve cushioning and shock absorption. Additional comfort comes from the Ortholite® insole, designed for long-lasting cushioning and step-in comfort. This makes the shoe a strong option both for technical approaches and for longer days in the mountains.
The Vibram® XS Trek outsole with Traction Lug™ is built for a high level of grip, and in the product benefits section the manufacturer also highlights a climbing zone for more dependable contact on unpredictable terrain. Extra protection comes from the rubber toe cap and raised rubber rand, which improve durability and help shield the shoe on rocky and abrasive surfaces.
The model uses Mountain Performance Fit, which wraps more closely around the foot, especially at the heel and arch, to reduce internal movement and provide more controlled steps on technical ground. According to the manufacturer’s ratings, the shoe scores at the highest level for both protection and grip, underlining its focus on more demanding mountain routes.
Detailed description
he Mammut Alnasca IV Low LTH GTX Men are built for men who want technical footwear for approaches, mountain hikes, and more demanding terrain. The manufacturer describes them as low-cut, flexible shoes for confident footing during approaches, hikes, and via ferrata routes, with a construction focused on precision, protection, and comfort.
One of the key strengths of this model is its combination of weather protection and durable materials. The shoes use a GORE-TEX Footwear lining for waterproof protection, while the upper is made from durable Mastrotto suede leather that is sustainably tanned in Italy. This makes the model well suited to changing conditions and rougher surfaces without sacrificing comfort.
The Alnasca IV Low LTH GTX Men are designed with a strong focus on precision on technical terrain. The FLEXTRON propulsion plate provides the stiffness and stable support needed for secure, controlled steps on demanding ground. Mammut explains that Flextron enhances stability, energy return, and support on uneven terrain, while the TPU element in the midsole acts like a springboard for added rebound.
For comfort on longer outings, the model uses EVA midsole foam to improve cushioning and shock absorption. Additional comfort comes from the Ortholite® insole, designed for long-lasting cushioning and step-in comfort. This makes the shoe a strong option both for technical approaches and for longer days in the mountains.
The Vibram® XS Trek outsole with Traction Lug™ is built for a high level of grip, and in the product benefits section the manufacturer also highlights a climbing zone for more dependable contact on unpredictable terrain. Extra protection comes from the rubber toe cap and raised rubber rand, which improve durability and help shield the shoe on rocky and abrasive surfaces.
The model uses Mountain Performance Fit, which wraps more closely around the foot, especially at the heel and arch, to reduce internal movement and provide more controlled steps on technical ground. According to the manufacturer’s ratings, the shoe scores at the highest level for both protection and grip, underlining its focus on more demanding mountain routes.