Infinity RNB “Round Nose Blurr” Surf SUP
Speed Meets Stability. Shortboard Performance, SUP Control.
The Infinity RNB (Round Nose Blurr) is one of the most popular and best-selling boards in the Infinity lineup — a true performance surf SUP that blends shortboard-style agility with real-world stability.
Designed to bridge the gap between narrow high-performance shapes and wider, more forgiving boards, the RNB allows riders to size down 2–3 inches in width while maintaining the same comfort and balance underfoot. The result is a faster, more responsive board that still feels composed and confident when paddling or dropping into waves.
Design Features
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Performance Outline:
Combines a round nose and compact outline for speed and stability across all conditions.
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Refined Bottom Contours:
Slight single concave entry flowing into a deeper double concave between the fins for added lift, control and release.
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5-Fin Option:
Customise your setup for speed (thruster) or looseness (quad) depending on wave size and preference.
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Fast + Forgiving:
Quick down the line, smooth through turns, and stable when waiting for sets.
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All-Conditions Performer:
Excels in small surf yet holds its own when things get punchy.
Available Sizes
| Length |
Width |
Volume |
| 7’1” |
24” |
72.3 L |
| 7’4” |
25” |
78 L |
| 7’7” |
27” |
87.5 L |
| 8’2” |
29” |
115 L |
| 8’2” |
30” |
125 L |
| 8’5” |
31” |
133.5 L |
| 8’8” |
32” |
142 L |
Why We Love It
The RNB is the perfect fusion of performance and fun — it paddles easily, catches waves early, and absolutely flies once you’re up and riding. Loved by pros and progressing riders alike, it’s a board that keeps up with you as your skills improve.
Perfect For:
Riders looking for a fast, versatile surf SUP that combines shortboard precision with the forgiveness and stability of a wider shape.
