The Underdog is a collaboration between Caio Ibelli and Rusty Surfboards shaper, Pedro Battaglin. The Underdog is Caio's favorite high-performance board for competition on the World Surf League tour, designed for versatile conditions and powerful waves.
Underdog excels at quick tight turns and power moves. The Underdog has a deep single concave with aggressive nose and tail rocker. Underdog's high-performance rails are low, medium apex and sharp for maximum attack. The aggressive outline features a narrow nose and round tail to keep you connected in hollow sections and in the pocket. Foil (distribution of volume) is especially pronounced with a thinner nose than tail, to free the nose and allow quicker pivot.
Underdog features a thruster fin setup for reliable drive, stability and control. This board is designed for intermediate to advanced surfers in 2 ft. to 8 ft. surf. Everyone loves an Underdog! #GoCaio
Caio rides the stock 5'9" (18.38" x 2.30" x 25.5L). .
Design Notes
The Underdog was created for surfer Caio Ibelli to surf the most varied wave conditions on the planet.
It is a high performance shortboard, it has a round tail, a pronounced dome deck, low and smooth edges for easy transitions and a narrower nose area.
The bottom has a very accentuated and very deep concave and a more pronounced rocker common on professional boards. It has a very short turning arc and little nose area that works in waves of 0.5 to 2.0 meters.
Recommended for surfers with intermediate and advanced levels.
THE BEST THRUSTER FOR HIGH PERFORMANCE SURFING
APPROACH & STYLE
The Underdog is your new favorite high performance shortboard for waves of consequence. This board will perform best in waves that are waist to overhead in size. Ideal for intermediate through expert surfers looking for the highest of performance.
FEATURES & BENEFITS
WHAT MAKES THIS BOARD WORK
Aggressive RockerThe Underdog has an early, deep single concave with aggressive nose and tail rocker. Perfect for barrel riding and turning on a dime. |
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High-Performance RailsRails are low, medium apex and sharp for maximum attack. |
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Round TailThe aggressive outline features a narrow nose and round tail to keep you connected in hollow sections and in the pocket. Foil (distribution of volume) is especially pronounced with a thinner nose than tail, to free the nose and allow quicker pivot. Underdog features a thruster fin setup for reliable drive, stability and control. |
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DIMENSIONS
BOARD SIZES AND SPECIFICATIONS
| Length | Width | Thickness | Volume | Type |
| 5'5" | 17.86" | 2.10" | 21.5 L | Standard |
| 5'5" | 18.85" | 2.39" | 25.5 L | XTRA |
| 5'6" | 17.99" | 2.15" | 22.5 L | Standard |
| 5'6" | 18.98" | 2.43" | 26.5 L | XTRA |
| 5'7" | 18.12" | 2.20" | 23.5 L | Standard |
| 5'7" | 19.11" |
2.47" |
27.5 L |
XTRA |
| 5'8" | 18.25" |
2.24" |
24.5 L |
Standard |
| 5'8" | 19.24" | 2.50" | 28.5 L | XTRA |
| 5'9" | 18.38" | 2.30" | 25.5. L | Standard |
| 5'9" | 19.37" |
2.54" |
29.5 L |
XTRA |
| 5'10" | 18.51" |
2.35" |
26.5 L |
Standard |
| 5'10" | 19.50" | 2.57" | 30.5 L | XTRA |
| 5'11" | 18.64" |
2.41" |
27.5 L |
Standard |
| 5'11" | 19.63" |
2.60" |
31.5 L | XTRA |
| 6'0" | 18.77" |
2.42" |
28.5 L |
Standard |
| 6'0" | 19.76" | 2.63" | 32.5 L | XTRA |
| 6'1" | 18.90" |
2.45" |
29.5 L |
Standard |
| 6'1" | 19.89" | 2.65" | 33.5 L | XTRA |
| 6'2" | 19.03" |
2.48" |
30.5 L |
Stranded |
| 6'2" | 20.02" | 2.68" | 34.5 L | XTRA |
| 6'3" | 19.16" |
2.51" |
31.5 L |
Standard |
| 6'3" | 20.15" | 2.70" | 35.5 L | XTRA |
| 6'4" | 19.29" |
2.55" |
32.5 L |
Standard |
| 6'4" | 20.28" | 2.72" | 36.5 L | XTRA |
| 6'5" | 19.42" |
2.57" |
33.5 L |
Standard |
| 6'5" | 20.41" | 2.74" | 37.5 L | XTRA |
| 6'6" | 19.55" |
2.60" |
34.5 L |
Standard |
| 6'6" | 20.54" | 2.76" | 38.5 L | XTRA |
