Firewire Boss Up
Performance shortboard. 7 sizes from 6'6" to 7'6", 40 to 51 liters, listed by Down the Line Surf, Firewire / Slater Designs, Rider Shack. In stock from £815.
Every size and price
| Size | Liters | Price | Store |
|---|---|---|---|
| 6'6" | 39.5 | $900 sold out | Rider Shack |
| 6'6" × 20" × 2 3/16" | 39.5 | £750 sold out | Down the Line Surf |
| 6'6" × 20" × 2 3/16" | 39.5 | £870 sold out | Down the Line Surf |
| 6'6" × 20" × 2 3/16" | 39.5 | £780 sold out | Down the Line Surf |
| 6'6" × 20 1/8" × 2 7/8" White / I-Bolic 2.0 Core with Fiberglass Lamination | 39.5 | $995 sold out | Firewire / Slater Designs |
| 6'8" | 40.8 | $960 sold out | Rider Shack |
| 6'8" | 40.8 | $945 sold out | Rider Shack |
| 6'8" × 20 1/4" × 2 7/8" | 40.8 | £815 | Down the Line Surf |
| 6'8" × 20 1/4" × 2 7/8" | 40.8 | £870 sold out | Down the Line Surf |
| 6'8" × 20 1/4" × 2 7/8" | 40.8 | £780 sold out | Down the Line Surf |
| 6'8" × 20 1/4" × 2 7/8" White / I-Bolic 2.0 Core with Fiberglass Lamination | 40.8 | $995 sold out | Firewire / Slater Designs |
| 6'8" × 20 1/4" × 2 7/8" used | 40.8 | $665 sold out | Rider Shack |
| 6'8" × 20 1/4" × 2 7/8" used | 40.8 | $960 sold out | Rider Shack |
| 6'10" | 43.0 | $1,125 sold out | Rider Shack |
| 6'10" | 43.0 | $965 sold out | Rider Shack |
| 6'10" × 20 3/8" × 2 15/16" | 43.0 | £835 sold out | Down the Line Surf |
| 6'10" × 20 3/8" × 2 15/16" | 43.0 | £940 | Down the Line Surf |
| 6'10" × 20 3/8" × 2 15/16" | 43.0 | £780 sold out | Down the Line Surf |
| 6'10" × 20 3/8" × 2 15/16" White / I-Bolic 2.0 Core with Fiberglass Lamination | 43.0 | $1,125 | Firewire / Slater Designs |
| 6'10" × 20 3/8" | 43.0 | $1,045 sold out | Rider Shack |
| 7'0" × 20 7/16" × 2 15/16" | 44.3 | £855 sold out | Down the Line Surf |
| 7'0" × 20 7/16" × 2 15/16" | 44.3 | £940 sold out | Down the Line Surf |
| 7'0" × 20 7/16" × 2 15/16" White / I-Bolic 2.0 Core with Fiberglass Lamination | 44.3 | $1,125 sold out | Firewire / Slater Designs |
| 7'2" | 46.4 | $1,005 sold out | Rider Shack |
| 7'2" × 20 1/2" × 3" | 46.7 | £875 | Down the Line Surf |
| 7'2" × 20 1/2" × 3" | 46.7 | £940 sold out | Down the Line Surf |
| 7'2" × 20 1/2" × 3" | 46.7 | £880 sold out | Down the Line Surf |
| 7'2" × 20 1/2" × 3" White / I-Bolic 2.0 Core with Fiberglass Lamination | 46.4 | $1,125 sold out | Firewire / Slater Designs |
| 7'4" | 48.4 | $1,025 sold out | Rider Shack |
| 7'4" × 20 7/16" × 3 1/16" | 48.4 | £895 | Down the Line Surf |
| 7'4" × 20 7/16" × 3 1/16" | 48.4 | £940 | Down the Line Surf |
| 7'4" × 20 7/16" × 3 1/16" | 48.4 | £880 sold out | Down the Line Surf |
| 7'4" × 20 7/16" × 3 1/16" White / I-Bolic 2.0 Core with Fiberglass Lamination | 48.4 | $1,125 sold out | Firewire / Slater Designs |
| 7'6" × 20 5/8" × 3 1/8" | 51.1 | £915 | Down the Line Surf |
| 7'6" × 20 5/8" × 3 1/8" | 51.1 | £940 sold out | Down the Line Surf |
| 7'6" × 20 5/8" × 3 1/8" | 51.1 | £880 sold out | Down the Line Surf |
| 7'6" × 20 5/8" White / I-Bolic 2.0 Core with Fiberglass Lamination / L x 3 | 51.1 | $1,125 sold out | Firewire / Slater Designs |
Open Firewire Boss Up in the finder →
One row per size and store. Liters marked ≈ are SurfCalc estimates (from the same model at other sizes, or from the dimensions). Prices are in the store's currency. Not sure which size? The calculator turns your weight, skill and waves into a liter range. More Firewire boards · Shortboards. Updated 2026-10-19.