| Activity Level | K3 |
| Max. Body Weight | 275 lbs (125 kg) |
| Sizes | 22 - 30 |
| Weight without Footshell* | 15.9 oz (450 g) |
| Footshell Shape | Normal shape with 10 +/- 5 mm heel height |
| Footshell Color | Beige(4), Light brown(15) |
| Weight with Footshell* | 25.6 oz (725 g) |
| Build Height* | 3 1/4" (82 mm) |
| * Reference size is 26 cm |
| 22 cm | 23 cm | 24 cm | 25 cm | 26 cm | 27 cm | 28 cm | 29 cm | 30 cm | |
| Up to 128 lbs (58 kg) | 1 | 1 | 1 | 1 | - | - | - | - | - |
| 129-159 lbs (59-72 kg) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 160-190 lbs (73-86 kg) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 191-220 lbs (87-100 kg) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 221-275 lbs (101-125 kg) | - | - | - | - | 5 | 5 | 5* | 5* | 5* |
| * Do not combine this configuration with a 3C88-3 C-Leg or a 3C98-3 C-Leg. |