Description
ATOMIC REDSTER STR 3 Ski Boots
The Atomic Redster STR 3 is Atomic’s most flexible race boot for lighter adult skiers, combining low-volume race precision with a more forgiving 110 flex. It is designed for smaller or lighter racers who want excellent control, responsiveness and confidence without feeling overpowered by an excessively stiff boot.
A slim 91 mm Racing Last provides a close, precise fit for direct power transmission and race-level control. The high-performance World Cup Race Liner features Atomic’s Ankle Retention System for secure ankle hold and a precise connection between the foot and shell, while the adjustable Redster AFS Tongue allows fine tuning over the instep.
Both the shell and cuff are made from Formula PU and feature Atomic’s thin yet powerful STR Wall Thickness for a progressive flex specifically designed around lighter racers. The Race Chassis uses a thicker plastic base beneath the foot to increase stability, power transfer and edge grip, while Podium Geometry places the skier in an athletic race stance.
With sizes extending down to a true Mondo Point 21, the Redster STR 3 is particularly well suited to smaller adult racers and developing athletes who need true race construction in a lower-volume, more manageable package.
Key Features
Specifications
| Flex | 110 |
| Last / Fit | 91 mm Racing Last – Narrow / Low Volume |
| Shell Technology | STR Wall Thickness |
| Shell / Cuff Material | Formula PU Shell / PU Cuff |
| Cuff Height | Regular Cuff – All Sizes |
| Boot Sole | Redster Solid Sole |
| Forward Lean | 16° (Default) / 18° |
| Ramp Angle | 4° |
| Norm | Alpine ISO 5355 |
| Weight per Boot | 2174 g (MP 26/26.5) |
Sizing
| Mondo Point | Boot Sole Length | Last Width |
|---|---|---|
| 21 / 21.5 | 256 mm | 81 mm |
| 22 / 22.5 | 266 mm | 83 mm |
| 23 / 23.5 | 274 mm | 85 mm |
| 24 / 24.5 | 284 mm | 87 mm |
| 25 / 25.5 | 294 mm | 89 mm |
| 26 / 26.5 | 304 mm | 91 mm |



