








All-mountain ski boots - Women -
Advice : Use the foot sizer from SIDAS to help you find the right size
The Anthem X 105 BOA is an all-mountain ski boot for women from the brand K2.
With a flex of 105 and a last volume of 100 mm, it offers an excellent balance between power and comfort, ideal for advanced skiers who want to perform on all terrains. Its BOA® micrometric closure system ensures a precise and even hold of the foot, distributing pressure evenly for optimal comfort all day long. Featuring the TRUEALIGN GEOMETRY construction, this boot allows you to maintain natural stance and balance during your descents for smooth and confident skiing.
The shell incorporates FASTFIT INSTEP technology, a softer TPU material at the instep that facilitates quick donning and doffing. The P4 liner combines a PVC outer shell, a PE mid-foam, and an open-cell inner foam for comfortable cushioning and effective support without adding volume. The GRIPWALK sole with rocker enhances grip and walking comfort, while the Velcro strap provides additional hold.
Thanks to its last Multifit™, this boot perfectly adapts to feet with widths between 97 and 100 mm, offering a reliable and personalised fit. The Anthem X 105 BOA is a technical and high-performance choice for ski enthusiasts seeking a versatile and comfortable all-mountain boot.

- Sole: Gripwalk
- Strap: Velcro
| FASTFIT INSTEP | A more flexible TPU material is used at the instep on certain shell models to allow quick and easy entry and removal of the boot. |
| P4 LINER | This liner is designed to offer simplicity and comfort. Its construction with an outer PVC shell, a mid-layer PE foam, and an open-cell inner foam provides comfortable cushioning. The 10 mm PE tongue adds support without increasing volume. Intended for recreational skiers seeking a reliable fit and accessible performance. |
| MULTIFIT™ LAST | Allows adaptation to widths ranging from 97mm to 100mm. |
| BOA® | BOA® micro-adjustment closure system offering precise and even foot hold. It distributes pressure evenly to enhance comfort and performance throughout the day. |
| GRIP WALK |
Designed with a rocker shape to increase grip and walking comfort. |
| TRUEALIGN GEOMETRY |
With good balance, skiing becomes easier and more efficient. The True Align Geometry technology adjusts according to the slope, your stance, foot alignment, and calf position to suit female morphology, helping female skiers easily maintain their centre of gravity. Ski with confidence. |
