The Booster Strap is the essential item for improving ski boot performance. When used properly it provides for maximum boot performance and astonishing ski control, increases comfort and aids the prevention of shin bang and other boot maladies. It eliminates any empty space between the shin and the ski boot's tongue. The stiffness varies with the different models though making variable the elastic response that has to be a choice of the skier according to his technique, morphology and skiing discipline. Booster Kid is ideal for kids.Booster Soft is ideal for good skiers and light/not aggressive racers.Booster Medium is ideal for very good skiers and racers.Booster World Cup is engineered to fit the needs of the World Cup skier.Consider that it is better to begin with a softer model rather than a stiff one.How to choose: 1. Weight/Height: The Booster Medium or World cup fits Heavy/Tall athletes. Booster Soft fits Light/Short athletes.2. Aggressiveness: Medium or World Cup fits an aggressive skier. Booster Soft fits a quiet skier.3. Discipline: For Tech events it is suggested to ski with a Medium or World Cup, for Speed events and Freeski with the soft model.4. Stiffness of Boots Plastics: For Stiff Boots it is suggested to ski with a Medium or World Cup, for Soft Boots with the soft model. 5. Stiffness of the Ski: For Stiff Ski it is suggested to ski with a Medium or World Cup, for Soft Ski with the soft model.

Our Commitment to Quality

Our passion runs deep—and so does our experience. For proof, look no further than our products. They blend sophisticated materials, fresh technology, and exceptional engineering. And thanks to their unrivaled craftsmanship and deep commitment to quality, they’re built to last. 


As a proud member of One Percent for the Planet, we donate one percent of all sales from our website to environmental initiatives. Through our commitment to One Percent for the Planet, we support Protect Our Winters and its efforts to combat climate change and educate the public about its effects. We’re far from perfect, but we’re working to reduce our environmental impact, improve the world around us, and inspire others to do the same. And thanks to the support you provide with each purchase, you’re helping expand our reach and magnify our ability to affect change.