Sierra®
L-Codes
L5981
L5986
Ultimate Flexibility
The Sierra® is a high energy-return foot with multi-axial flexibility and an angle-top design, engineered to manage provide users a smooth gait over a broad spectrum of activities on any type of terrain. This lightweight design offers moderate and high activity users great freedom of movement with a high level of flexibility while maintaining a high level of comfort and dynamism throughout the day.
- Angle-top design: increases the length of the carbon fiber spring, providing a smoother gait and ultimate flexibility
- Streamlined, split-toe design enhances multi-axial function and increases ground compliance and stability
- Full length dynamic heel enables foot flat early in the gait cycle, providing a stable base of support and exceptionally smooth gait
- Ultra-lightweight, allowing users to do more and feel less tired at the end of the day.
- Water-resistant
The Sierra® is for moderate activity (K3) users who prioritize:
- Excellent heel strike shock absorption
- Excellent agility and flexibility - with 15° of inversion/eversion
- Quick & moderate dynamic response
- Recommended L-Code(s): L5981, L5986
- Build height: 6,2" / 158mm (size 26, with foot shell, spectra sock and 10mm heel height)
- Maximum user weight: 365lbs / 166kg
- Product weight: 1,3lbs / 597g (size 26 with foot shell & spectra sock)
- Sizes 22–31cm (Sandal toe option available - 22-28)
- Heel height: 3/8" / 10mm
- Attachment type: Male pyramid
- Foot shell skin tones: Dark, Medium, Light
- Warranty: 36 months (shell 6 months)
- 60 day return
Technical Specifications
Item
Sierra®
Weight (27 Cat 4, module with foot shell)
597g
Build Height* - 22 - 25cm
5.75” / 146mm
Build Height* - 26 - 28cm
6.75" / 172mm
Build Height* - 29 - 31cm
7.375” / 187mm
Heel Height
3/8” / 10mm
*Build height based on size 27cm Cat 4 foot module with foot shell and 10mm heel height. Sandal-toe available for sizes 22-28cm.
Selection Guide
Module Selection According to Activity and Weight
| Weight/ Activity level | 100-115 lbs 44-52kg | 116-130 lbs 53-59kg | 131-150 lbs 60-68kg | 151-170 lbs 69-77kg | 171-195 lbs 78-88kg | 196-220 lbs 89-100kg | 221-255 lbs 101-116kg | 256-285 lbs 117-130kg | 286-325 lbs 131-147kg | 326-365 lbs 148-166kg |
|---|---|---|---|---|---|---|---|---|---|---|
| Low | 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Moderate | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | - |
| High | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | - | - |
NOTE: Increasing category numbers indicate increased keel response.
Scroll horizontally to view all weight ranges.
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