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NEW Solas K3/K4 Foot Promotional Offer!
NEW Solas Foot

STF19 - Triumph K3/K4

SKU STF190-22-L-4S2

Please consult with a professional to have these products specified

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  • Narrowed shank provides multi-axial compliance to uneven terrain increasing stability and limb comfort
  • 4 categories to choose from
  • Optional toe wedges provide increased dorsiflexion resistance and improved proprioception at mid-stance for increased stability
  • Multi-axial rotation and shock absorption
  • Full-length split keel
  • Smooth rollover and controlled plantar flexion


Medium to high impact levels, K3-K4, maximum weight of 160 kg /350 lb*


Product Sizes

22-30 cm
Weight Limit

350 lb · 160 kg    *For low impact level, category 9

Solid Toe
Foot Shell

Light, Dark
Product Weight

493 g / 1 lb (Size 25 without Pylon)
Min. Clearance

18 cm / 7.1 in
Heel Rise

9.5 mm · 3/8 in

Preassembled with foot shell and Spectra sock

Category selection instruction

To optimize the selection and ensure amputee’s safety, follow the two steps below to determine the appropriate category.
   1. Locate the column that corresponds with the amputee’s impact level.
   2. Within the selected column, locate the amputee’s weight.
Important Note: If the amputee has a long BK, carries heavy loads or will reach a higher impact level within a year, choose the next category higher.
Warning: Choosing a lower strength category than what is suggested based on the above procedure and patient data will void the warranty. If your patient’s weight exceeds the limits of the chart please call Trulife Customer Service.

Low Impact LevelMedium Impact LevelHigh Impact Level
CategoryFoot Length (cm)Walking Uneven SurfacesLight SportsRunning, Basketball
926-30137-160 kg · 301-350 lb124-145 kg · 271-320 lb106-125 kg · 232-274 lb
824-30101-136 kg · 221-300 lb 89-123 kg · 194-270 lb 76-105 kg · 166-231 lb
623-29 81-100 kg · 177-220 lb  71-88 kg · 155-193 lb 61-75 kg · 133-165 lb
422-28 <80 kg · <176 lb<70 kg · <154 lb<60 kg · <132 lb


  • Foot:  3 years
  • Foot Shell:  6 months


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