SF Sports · Brand guide
Booster – elastic power straps for ski boots
Booster Straps add an elastic strap to the ski boot setup for contact between the leg and liner tongue. SF Sports offers Kid, Intermediate Soft, Medium and World Cup models and support with selection and fitting.
Kid & Intermediate Soft
Compare versions for different skiers and requirements.
Medium
Explore Medium versions including the available neon colours.
World Cup
Match this race-oriented version carefully to the existing setup.
Frequently asked questions
How does a Booster differ from a rigid hook-and-loop strap?
A Booster uses elastic material. This can change the contact and flex sensation as you move forward. The right version and correct positioning are essential.
Which Booster model should I choose?
Compare Kid, Intermediate Soft, Medium and World Cup according to the skier, skiing style and boot. We can help match the setup; the boot's flex number alone does not settle every choice.
Is a Booster only for racers?
No. Sporty recreational skiers can also include a Booster in their setup. What matters is whether the version and installation suit the boot and desired feel.
Where should the Booster be routed?
According to the manufacturer's instructions, the elastic section works against the liner tongue at the front. The exact routing depends on the boot's construction. Have the installation checked if uncertain.
Does a Booster replace the existing power strap?
The manufacturer intends the Booster to replace the existing rigid strap. Attachment and installation must suit the boot; do not simply add one strap on top of the other.
Will a Booster fix an oversized ski boot?
No. A strap cannot replace a correctly fitting shell and liner. Excess volume or pressure issues should first be assessed through bootfitting.
What if the strap feels too stiff or too loose?
Check the model, routing and tension against the instructions. Do not modify material layers or fittings yourself. If uncertain, have the setup checked on your boot.