A soft-feeling ball engineered for longer carry and a high, stable trajectory. The Mizuno RB 566 (2024 model) is a soft 2-piece golf ball featuring Mizuno's unique 566 micro-dimple pattern, developed to extend hang time past the apex of flight and deliver more carry distance. A large, high-energy soft core keeps driver spin low and helps the ball climb quickly, while the micro-dimples slow the rate of descent once the ball has peaked — the result is a ball that stays in the air longer and adds measurable yards of carry. Designed for low-to-mid swing speeds, the RB 566 strikes an outstanding balance of high launch, soft feel, and all-round playability.
The RB 566 carries its name from its unique 566-dimple configuration, combining both Micro-Dimples and D-Dimples in a single aerodynamic pattern. At mid-to-low ball speeds, both dimple types become increasingly effective, working together to slow the rate of descent once the ball has passed the apex of its trajectory. The result is a ball that appears to "hang" in the air for longer, generating additional carry distance and arriving at the green on a steeper, more controlled descent angle. This design is particularly beneficial for golfers with moderate swing speeds, where aerodynamic efficiency at lower velocities is critical to maximising distance.
At the heart of the RB 566 is a large, low-compression, high-energy core engineered to deliver what golfers often consider contradictory qualities: impressive ball speed and a genuinely soft feel at impact. The low compression rating means the core deforms efficiently even at slower swing speeds, reducing driver spin and helping the ball launch at a higher angle for a more powerful and efficient flight. Despite this softness, the high-energy construction ensures no significant sacrifice in overall distance — the RB 566 remains competitive in carry while still feeling noticeably gentle coming off the face and putter.
The RB 566 is finished with a robust ionomer cover that provides an excellent blend of greenside responsiveness and long-lasting durability. Unlike softer urethane covers found on premium tour balls, the ionomer construction is designed to withstand the rigours of frequent, all-year-round play without scuffing or losing performance characteristics prematurely. Around the green, the cover delivers a reliable, consistent feel for chips, pitches, and bump-and-run shots, giving golfers the confidence to execute their short-game strategy. Its resilience also makes the RB 566 an outstanding value proposition across a full season of golf.
The RB 566 is engineered to produce a stable, mid-height trajectory off the driver, promoting a penetrating ball flight that resists wind deviation and maximises total distance. The reduction in driver spin helps golfers with moderate swing speeds avoid ballooning shots that lose distance quickly, instead achieving a flatter, more efficient flight arc that holds its line. In the short game, the ball transitions to a medium-to-higher spin response, allowing for confident approach shots and reliable stopping power on the green. This versatility across the bag makes the RB 566 a genuinely all-round performer, not merely a distance-focused ball.
Among all golf balls in the Mizuno lineup, the RB 566 carries the lowest compression rating, making it the softest option available from the brand. This translates to a delicate, buttery sensation at impact — whether driving off the tee, playing iron approaches, or stroking putts on the green. Golfers who value feel above all else will appreciate how the RB 566 communicates feedback from every shot without harshness. Importantly, this softness is balanced rather than excessive: the ball still delivers the speed, distance, and flight consistency needed for competitive recreational play, maintaining a thoroughly well-rounded performance profile across all clubs in the bag.
The Mizuno RB 566 in Optic Yellow offers significantly enhanced visibility compared to a traditional white ball, making it easier to track through the air and locate in rough, semi-rough, and low-light conditions. The bold, vivid yellow colouring is particularly useful during early-morning or late-evening rounds when light levels are reduced, as well as in autumn when fallen leaves can obscure a white ball. High-visibility golf balls have become increasingly popular at all skill levels, and the RB 566 in yellow delivers the same proven Mizuno technology in a format that helps golfers spend less time searching and more time playing.
| Specification | Detail |
|---|---|
| Model | Mizuno RB 566 (2024) |
| Construction | 2-piece |
| Compression | Soft (lowest compression in the Mizuno golf ball range) |
| Dimple Pattern | 566 Micro / D-Dimple design |
| Core | Large, high-energy soft feel core |
| Cover | Ionomer |
| Trajectory | Mid, stable |
| Driver Spin | Low |
| Short Game Spin | Medium–High |
| Recommended Swing Speed | Low to mid swing speeds |
| Colour | Optic Yellow |
| Quantity per Pack | 12 balls (1 dozen) |
Your review will help us and other customers when buying this product.
