The Atomic Women’s Hawx Ultra AFS Mimic Platinum Liner is specifically constructed for women's Hawx Ultra boots. This 100% PVC-free liner offers a responsive fit and fantastic heel hold balanced with all day comfort. Its highly anatomical, out-of-the-box fit is complemented by the heat-moldable Mimic technology that forms around the shape of your foot. The Adaptive Fit System (AFS) Tongue can be adjusted ever so slightly to more accurately fit with your foot and leg shape. This liner’s performance level and customization potential is second only to Atomic’s Mimic Professional Liner with foam injection technology.