| TRI-US-FL-STD-S | Fits Trick (small legs only) |
| TRI-US-FL-STD-M | Fits Trick (medium legs only) |
| TRI-US-FL-STD-L | Fits Trick (large legs only) |
| TRI-US-FL-PM-S | Ultimate Siper - P&M / Bicknell (small legs only) |
| TRI-US-FL-PM-M | Ultimate Siper - P&M / Bicknell (medium legs only) |
| TRI-US-FL-PM-L | Ultimate Siper - P&M / Bicknell (large legs only) |