113991BLU000 Features: For 08 to 09 model NTN binding Specifications: White usage: (extra soft flex, recommended for small boots used with the NTN short binding) Green usage: soft: recommended for boot size 265-28 mondo and NTN-short binding Blue usage: medium rigidity; recommended for boot size 285-32 mondo, used with the NTN-long Red usage: rigid Black: extra rigid, use with the NTN-long binding only