Extremely precise climbing shoe The Boostic R is back. Its features combine excellent edge stability with precision on the smallest footholds for vertical wall climbing. Our Boostic R offers the best edge stability with precision on tiny footholds for vertical climbing. This ensures optimal positioning of your foot while adapting to the natural shape of your toes. You receive outstanding support from its technically well-thought-out and shape-stable sole. Highlights: Narrow Fit, strong asymmetry, continuous sole rubber for stability, double Velcro Slingshot construction, Toe Patch, best support and edge stability, Slingshot construction for sustained tension, extremely precise.