







Men's ski boots -
Advice : Use the foot sizer from SIDAS to help you find the right size
The Concept 11 Gw Boa is a men's alpine ski boot from the brand Lange , designed to give experienced skiers a carefree skiing experience.
Designed with a comfortable fit Comfort Last, the Concept 11 Gw Boa features a relaxed fit that suits all body shapes. What’s more, thanks to its tongue Comfort Profile, fitting them and taking them off is effortless – you can even do it hands-free. As for the Comfort Fit thermosettable insole, which can be customised to 70%, it features dual-density recycled Polyurethane padding for precise and long-lasting support.
What’s more, the technology Suspension Blade ensures smooth shock absorption between the lower and upper collars for enhanced control through every turn, whilst the adjustable flex allows you to tailor the boot’s rigidity to suit your riding style. The fastening system BOA® provides a precise fit, minimising pressure points and providing perfect control over edge changes. Finally, the soles GripWalk® provide comfort when walking and are compatible with alpine binding mechanisms.
The brand has combined comfort, performance and environmental awareness to create the Concept 11 Gw Boaboot that will give you an intuitive and dedicated skiing experience.

- Spacious fit Comfort last
- Tongue Comfort Profile for easy, hands-free fitting and taking off
- Technology Suspension Blade that connects the upper and lower collars for smooth shock absorption and enhanced control
- Adjustable insert on the collar to soften the flex by 8%
Composition :
- Tape Velcro : 100% recycled materials
- Internal sole: 50% recycled Polypropylene
| SLIPPERS COMFORT FIT | The thermosettable Comfort Fit insole is 70% customisable thanks to dual-density recycled PU padding in the heel, ankle and forefoot areas, which moulds to the specific shape of your foot. Your ski boots thus become a natural extension of your body, ensuring relaxed comfort all day long. |
| DUAL CORE | Thanks to DUAL CORE, the shoe actively compresses and then expands by harnessing potential energy, delivering explosive power, propulsion and Rebound. World Cup-level precision, easy on- and off-binding, and a whole new level of performance, thanks to ski boots that are as responsive as they are dynamic. |
| GRIPWALK® | The soles GRIPWALK® feature a convex rubber strip at the toes, providing better grip and a more natural walking experience. The soles GRIPWALK® ensure better energy transfer and a complete mountaineering experience. |
| BOA® | The adjustment system BOA® , featuring a specialised mechanism, H+i1 is specifically designed to meet the demands of Alpine skiing, offering a precise, multi-directional, micro-adjustable fit that evenly wraps around the foot, thereby reducing pressure points whilst providing effective heel support and control during edge changes. |