The Mammut Aenergy Trail Vest 12 is the perfect combination of ultralight construction and practicality. The ergonomic design with the intuitive TriPoint Adjust system ensures you’ll barely notice the vest—whether you’re training on the road or heading out on a day hike in the mountains.
- Invisible safety on the move
The ergonomic construction minimizes body vibrations, and the vest adapts to every movement. The TriPoint Adjust system ensures a perfect fit, so it won’t bounce around on your back during steep descents. - Everything you need, always at hand
12 liters of storage with cleverly placed pockets (2 stretch, 2 zippered + keyring) let you carry gels, energy bars, and other gear without having to strap anything to your body.
- Ultralight design for lightweight running
- Breathable 3D mesh on the chest
- Reflective elements for visibility
- Hydration bladder compatible
- Integrated Recco® safety tag
Specifications:
Volume: 12 liters
Rain cover: No rain cover
H2O system: Compatible
Helmet holder: No
Finish: Long-lasting PFC-free water-repellent
Mammut stands for functionality, design and unrivalled Swiss quality since 1862. Equipment, clothing and accessories for skiing, mountaineering, climbing and more. Free shipping. Mammut, Jackets, sweaters, pants, boots, equipment, accessories, t-shirts.
Mammut Sports Group AG is a manufacturer of mountaineering and trekking equipment based in Seon, Switzerland. The company was founded in 1862 by Kaspar Tanner in Dintikon. Today, Mammut employs 200 people at its headquarters and several hundred more employees work in various facilities around the world. The central warehouse for Europe is located in Memmingen, Germany, which is constantly being expanded.
Together with the German company Edelrid, Mammut is the world leader in climbing equipment. Mammut has bought several large companies that sell their products under this brand. These include Toko, which manufactures ski wax, and Raichle, which makes hiking boots.
Men's T-shirts / Sweatshirts / Jackets / Pants by Mammut
* Chest and hips (T-shirts) – T-shirts, sweatshirts, jackets. EU, US, waist (pants), hips (pants), and inseam – pants. Pants do not have a separate size S – EU 44 corresponds to S.
| Size | S | M | L | XL | XXL | XXXL | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chest – T-shirts (cm) | 87–94 | 95–102 | 103–110 | 111–118 | 119–126 | 127–134 | ||||
| Waist – T-shirts (cm) | 73–80 | 81–88 | 89–96 | 97–105 | 106–114 | 115–125 | ||||
| Hips – T-shirts (cm) | 86–93 | 89–96 | 102–109 | 110–117 | 118–125 | 126–133 | ||||
| EU (pants) | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | – |
| USA (pants) | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | – |
| Waist – pants (cm) | 76–79 | 80–83 | 84–87 | 88–91 | 92–95 | 96–99 | 100–103 | 104–107 | 108–111 | – |
| Hips – pants (cm) | 96–99 | 100–103 | 104–107 | 108–111 | 112–115 | 116–119 | 120–123 | 124–127 | 128–131 | – |
| Inseam (cm) | 82 | 83 | 83 | 84 | 84 | 85 | 85 | 86 | 86 | – |
Women's T-shirts / Sweatshirts / Jackets / Pants by Mammut
* Chest, waist (T-shirts), and hips (T-shirts) – T-shirts, sweatshirts, jackets. EU, USA, waist (pants), hips (pants), and inseam – pants.
| Size | XS | S | M | L | XL | XXL | |||
|---|---|---|---|---|---|---|---|---|---|
| EU – T-shirts | 32–34 | 34–38 | 40 | 42–44 | 46 | 48 | |||
| Chest – T-shirts (cm) | 76–83 | 84–91 | 92–95 | 96–103 | 104–107 | 108–114 | |||
| Waist – T-shirts (cm) | 60–67 | 68–75 | 76–79 | 80–87 | 88–91 | 92–97 | |||
| Hips – T-shirts (cm) | 85–92 | 93–100 | 101–104 | 105–112 | 113–116 | 117–122 | |||
| EU – pants | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 |
| USA – pants | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| Waist – pants (cm) | 60–63 | 64–67 | 68–71 | 72–75 | 76–79 | 80–83 | 84–87 | 88–91 | 92–97 |
| Hips – pants (cm) | 85–88 | 89–92 | 93–96 | 97–100 | 101–104 | 105–108 | 109–112 | 113–116 | 117–122 |
| Inseam (cm) | 81 | 81 | 82 | 82 | 83 | 83 | 84 | 84 | 85 |
Mammut Boots – EU / UK / US / Foot Length (mm)
The women's size chart is part of the men's chart—MONDO women's sizes correspond to foot length in the women's size chart. For women's shoes, refer to the UK, US women's, and MONDO women's columns.
| EU | 36 | 36⅔ | 37⅓ | 38 | 38⅔ | 39⅓ | 40 | 40⅔ | 41⅓ | 42 | 42⅔ | 43⅓ | 44 | 44⅔ | 45⅓ | 46 | 46⅔ | 47⅓ | 48 | 48⅔ | 49⅓ |
| UK | 3,5 | 4,0 | 4,5 | 5,0 | 5,5 | 6,0 | 6,5 | 7,0 | 7,5 | 8,0 | 8,5 | 9,0 | 9,5 | 10,0 | 10,5 | 11,0 | 11,5 | 12,0 | 12,5 | 13,0 | 13,5 |
| US Women's | 5,0 | 5,5 | 6,0 | 6,5 | 7,0 | 7,5 | 8,0 | 8,5 | 9,0 | 9,5 | 10,0 | 10,5 | 11,0 | 11,5 | 12,0 | 12,5 | 13,0 | 13,5 | 14,0 | 14,5 | 15,0 |
| US men's | 4,5 | 5,0 | 5,5 | 6,0 | 6,5 | 7,0 | 7,5 | 8,0 | 8,5 | 9,0 | 9,5 | 10,0 | 10,5 | 11,0 | 11,5 | 12,0 | 12,5 | 13,0 | 13,5 | 14,0 | 14,5 |
| MONDO Women's (mm) | 220 | 225 | 230 | 235 | 240 | 245 | 250 | 255 | 260 | 265 | 270 | 275 | – | – | – | – | – | – | – | – | – |
| MONDO Men's (mm) | – | – | – | – | – | 245 | 250 | 255 | 260 | 265 | 270 | 275 | 280 | 285 | 290 | 295 | 300 | 305 | 310 | 315 | 320 |
| MONDO unisex (mm) | 220 | 225 | 230 | 235 | 240 | 245 | 250 | 255 | 260 | 265 | 270 | 275 | 280 | 285 | 290 | 295 | 300 | 305 | 310 | 315 | 320 |
Mammut Gloves
* Palm length measured from the wrist to the tip of the extended middle finger. ** Palm circumference measured around the back of the hand between the thumb and index finger.
| Group | Size | Palm circumference ** (cm) | Palm length * (cm) |
| Men's | S / EU 6 | 18–19 | 16–17 |
| M / EU 7 | 19–20 | 17–18 | |
| M / EU 8 | 20–21 | 18–19 | |
| L / EU 9 | 21–22 | 19–20 | |
| Left / European Union 10 | 22–23 | 20–21 | |
| XL / US size 11 | 23–24 | 21–22 | |
| XL / UK 12 | 24–25 | 22–23 | |
| Women's | XXS / EU 4 | 16–17 | 14–15 |
| XS / EU 5 | 17–18 | 15–16 | |
| S / EU 6 | 18–19 | 16–17 | |
| M / EU 7 | 19–20 | 17–18 | |
| L / EU 8 | 20–21 | 18–19 | |
| XL / US size 9 | 21–22 | 19–20 |







