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A snowboarding boot includes a sole assembly having an outsole with a the lower face for contacting a ground surface and a reinforcing piece. Further included is a transverse plate for interaction with complementary arrangements of a binding. The plate is mechanically integrated with the sole assemb

A snowboarding boot includes a sole assembly having an outsole with a the lower face for contacting a ground surface and a reinforcing piece. Further included is a transverse plate for interaction with complementary arrangements of a binding. The plate is mechanically integrated with the sole assembly. An elastic element is interposed between the plate and the sole assembly. The element is deformable to allow lateral deflection of the boot relative to the binding.

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1. Snowboarding boot comprisinga sole assembly comprising:an outsole, comprising a lower face for contacting a ground surface;a reinforcing piece;means for interaction with complementary arrangements of a binding of a snowboard, said means being mechanically integrated with the sole assembly; andan

1. Snowboarding boot comprisinga sole assembly comprising:an outsole, comprising a lower face for contacting a ground surface;a reinforcing piece;means for interaction with complementary arrangements of a binding of a snowboard, said means being mechanically integrated with the sole assembly; andan elastic element interposed between the interaction means and the sole assembly, said element being elastically deformable to allow lateral deflection of the boot relative to the binding to cause opposite lateral ridges of the boot to be displaced at different distances from the snowboard. 2. Boot according to claim 1, wherein the deformation of the elastic element takes place by compression or tension in a vertical direction, and by shear in a horizontal plane. 3. Boot according to claim 1, wherein the elastic element has an asymmetric deformation capacity which is different from one side of the boot to the other. 4. Boot according to claim 1, further comprising means for limiting asymmetrically the lateral deflection of the boot. 5. Boot according to claim 1, wherein the interaction means are anchored in the reinforcing piece. 6. Boot according to claim 1, wherein the elastic element consists of a zone of the outsole. 7. Boot according to claim 1, wherein the elastic element is interposed between the outsole and the interaction means. 8. Boot according to claim 1, further comprising means for limiting the displacement of the interaction means in relation to the reinforcing piece. 9. Boot according to claim 1, characterized in that the element ( 10 ) interposed between the reinforcing piece ( 2 ) and the interaction means ( 5 ) has viscoelastic properties. 10. Boot according to claim 1, wherein the interaction means comprise a transverse plate, the ends of which are configured to come into contact with the binding. 11. Boot according to claim 10, further comprising connection means extending through the plate and anchored in the reinforcing piece, said plate being configured to slide relative to said connection means. 12. Boot according to claim 1, wherein the elastic element interposed between the interaction means and the sole assembly is formed by at least one spring working under compression. 13. The boot of claim 1 wherein said lateral ridges of the boot comprise lateral zones of said outsole. 14. The boot of claim 1 wherein said means for interaction is configured to incline in a transverse direction relative to the ski due to the lateral deflection of the boot. 15. The boot of claim 1 wherein said elastic element comprises lateral portions which are configured to be at least one of compressed and stretched to allow said opposite lateral ridges of the boot to be displaced at different distances from the snowboard. 16. Snowboarding boot comprisinga sole assembly comprising:an outsole, comprising a lower face for contacting a ground surface;a reinforcing piece;means for interaction with complementary arrangements of a binding of a snowboard, said interaction means comprising a transverse plate mechanically integrated with the sole assembly, ends of said plate being configured to come into contact with the binding;an elastic element interposed between the interaction means and the sole assembly, said element being elastically deformable to allow lateral deflection of the boot relative to the binding; andconnection means extending through the plate and anchored in the reinforcing piece, said plate being configured to slide relative to said connection means. 17. Snowboarding boot comprisinga sole assembly comprising:an outsole, comprising a lower face for contacting a ground surface;a reinforcing piece;means for interaction with complementary arrangements of a binding of a snowboard, said means being mechanically integrated with the sole assembly; andan elastic element interposed between the interaction means and the sole assembly, said element being elastically deformable to allow lateral deflection of the boot relative to the bi nding to cause an inclination of said means for interaction in a transverse direction relative to the snowboard. 18. The boot of claim 17 wherein said means for interaction comprises a transverse plate.