Jug liners received a complete makeover in the new Black Sox liner. Highlight is a new dual density foam which consists of a high density EVA foam on the outside which provides support and distributes stress over a wider area. A softer inner PU foam adapts to the contours of your foot enhancing fit and comfort. The padding of the tongue was increased to almost 1” and it comes with a removable tongue insert which in a hidden pocket. New is also a V-shape elastic insert in the back which provides flex if skated with V-cut cuffs.Unchanged is the high rebound shock absorbing insole, Velcro closure in the tongue to prevent shifting and the articulated ankle shape which keeps your foot locked in.Features:• Dual density foam • Extra padding in tongue • Elastic V-cut insert • Articulated ankle shape • Tongue pocket • Velcro tongue lock • J-pad ankle lock • Duel density Gel footbed • 4-point lacing system • Articulated, pre-shaped tongue