Flex Rating 5 (1 Soft - 10 Stiff) 3D-Molded Single-Density Pre-molded and anatomically shaped comfort EVA supports your feet, and a silicone top-print adds traction to the fleece-lined footbed. 8° Forward Lean (1:1 Lasting) Bronze-Level Thermo Heat Moldable Customizable fit and feel are made affordable, with the Bronze Level Heat Moldable liner. Targeted thermo-form foam, Nidecker's innovative and comfortable reverse-cut top cuff, multi-layer J-bars and tethered liner lacing with a no-drift Velcro custom closure offer comfort and performance that make for happy feet whenever they’re strapped in. 3D Molded Tongue The asymmetrical tongue is 3D molded and curved towards the medial side, following the naturally raised ridgeline of your forefoot to alleviate pressure points and give a more balanced feel of comfort and support. An anatomically correct and asymmetrical tongue performs better than a standard straight one.