• HEEL STABILIZING WEDGE III - For added forward flexion and heel lock
• INTEGRATED SUPPORT SYSTEM - Provides an anatomical fit in ankle/tendon 
• KEVLAR* reinforced nylon - Provides lightweight support and stiffness
• Pro quarter stitching - For increased lateral support
• SUPRA FORM footbed - Provides excellent fit and comfort
• Lace bite protector insert - Eliminates lace pressure
• HARDWEAR toe covering - Offers increased cut and abrasion resistance
• PROLITE 3 blade holder - Offset post design for improved energy transfer
• PROFORMANCE PROFILE STAINLESS steel runner - Provides the optimum comb

The 852 Custom Fit Tacks provide pro level stiffness with the use of a Kevlar wrap for excellent support and durability. Full felt tongue with kevlar interior provides superior lace-bite protection. Supple liner with heel lock keeps the feet comfortably in place and prevents heel lift.