Mammut Aenergy TR BOA® Mid men's trail running shoes

• 3M reflective elements
• BOA® Fit System closure: precise fit and micro-adjustment. Easy to use even with gloves.
• Soft midsole for medium to long distance runs.
• Protective rubber
• Flexible knit sock construction
• Vibram Megagrip sole with Vibram Litebase technology

• Application: Trail running, Mountain training
• Weight (UK 8.5): 375 grams
• Flex Index: A5
• Lacing: Boa® Fit System
• Sole: High rebound EVA wedge
• Lining: Ventilating mesh
• Heel-toe drop: 7 mm

• Fair Wear. Fair Wear works to ensure fair and safe working conditions in garment factories. The non-profit organization works directly with factories, unions, NGOs and governments to protect workers' rights.
• DWR without PFC. (Durable Water Repellent) water-repellent treatment without PFC. Perfluorinated compounds (PFCs) are often used for waterproofing, but they are virtually non-biodegradable. Mammut is committed to replacing non-biodegradable fabric processing with more sustainable, high-performance alternatives.
• Recycled. This product contains recycled materials with uncompromising performance and functionality. Choosing recycled materials reduces the use of raw resources and helps promote a circular economy.

The dimensions specified by each manufacturer may vary.

Here is a size chart specifically designed for Mammut shoes , which lists the dimensions in millimeters.

To accurately determine the size you need, we recommend measuring your foot length in millimeters.

1. Stand against a wall or other 90-degree vertical plane on the floor with your full weight so that your heel touches the wall/plane.
2. Mark where the thumb ends.
3. Measure both feet . If your feet are different sizes, choose the size of the larger foot when determining the size.
4. See the table below.

For hiking shoes, we recommend purchasing at least 1 - 1.5 sizes larger than your everyday shoe size.

In hiking shoes, your toes should not hit the toe!

This is because after a long walk, your feet swell and an otherwise good-sized shoe will start to squeeze! This is the most common reason why your feet and toes hurt. In the most serious cases, you can even lose your toenails due to the wrong size of hiking shoes.

Example : Measured foot size in millimeters 250 mm or EU 40. Hiking shoes should be chosen starting at 260 mm or EU 41 1/3.

Size chart EU Size Millimeters UK size 37 1/3 230 4.5 38 235 5 38 2/3 240 5.5 39 1/3 245 6 40 250 6.5 40 2/3 255 7 41 1/3 260 7.5 42 265 8 42 2/3 270 8.5 43 1/3 275 9 44 280 9.5 44 2/3 285 10 45 1/3 290 10.5 46 295 11 46 2/3 300 11.5 47 1/3 305 12 48 310 12.5 48 2/3 315 13 Do Mammut shoes fit standard EU sizes? Mammut shoes are small in size. On average 0.7 EU sizes smaller than other brands. Mammut EU sizes are converted from Mondo using the Mammut formula, which differs from the standard international system used by most other brands. Please contact us if you have any additional questions!