The historic Lost Arrow is the most prevalent kind of piton climbers are likely to find securing lines from Yosemite to Patagonia. Their simple straight-flare design provides a solid hold in both vertical and horizontal positions.
| Ref. | Product name | Weight (g) | Total length (mm) | Blade length (mm) | Thickness (mm) | Material |
| 013001 | LOST ARROW N.1 | 84 | 85 | 45 | 5 | Hardened Steel |
| 013002 | LOST ARROW N.2 | 94 | 90 | 55 | 7 | Hardened Steel |
| 013003 | LOST ARROW N.3 | 105 | 100 | 60 | 8 | Hardened Steel |
| 013004 | LOST ARROW N.4 | 110 | 110 | 70 | 10 | Hardened Steel |
| 013005 | LOST ARROW N.5 | 95 | 117 | 80 | 5,5 | Hardened Steel |
| 013006 | LOST ARROW N.6 | 102 | 125 | 85 | 7 | Hardened Steel |
| 013007 | LOST ARROW N.7 | 114 | 130 | 90 | 9 | Hardened Steel |
| 013008 | LOST ARROW N.8 | 110 | 155 | 115 | 7,5 | Hardened Steel |