

Men's ski touring boots -
Advice : Use the foot sizer from SIDAS to help you find the right size
The Radical Black Out/Ultra Yellow is a men's ski touring boot from the brand Dynafit, designed for committed racing. With a last width of 104 mm and an advanced level, it offers an excellent balance between lightness and performance.
Its shell and cuff made of TPU ensure durability and flexibility, while the HOJI Single Lock system allows easy transition from walk to ski mode with secure locking. Its 60° range of motion provides optimal freedom for ascent, and the adjustable forward lean at 11° offers a natural stance for descent.
The sole equipped with Vibram® studs ensures exceptional grip on all terrains, enhanced by the Dynafit Quick-Step-In system for quick and reliable binding attachment. The Dynafitter 10 liner guarantees precise comfort and suitable support, while the flexible Pebax tongue facilitates natural foot roll.
The Radical Black Out/Ultra Yellow is the ideal boot for passionate athletes seeking advanced technical performance in ski touring racing.



- Forward lean: 11° + walk mode (released)
- Cuff range of motion: 60°
- Sole: Vibram®
- Boot-binding system: Dynafit Quick-Step-In
- Closure system: HOJI Single Lock
- Liner: Dynafitter 10
- Shell: TPU
- Cuff: TPU
- Spoiler: Grilamid®
| HOJI SINGLE LOCK | Locking system allowing to switch from walk mode to ski mode and to hold the cuff in downhill position. |
| VIBRAM TRACTION LUGS | Vibram sole lugs enhancing grip during walking movements. |
| FLEX TONGUE | Flexible Pebax tongue promoting natural foot movement while walking. |
