Flex Rating and Fit
Flex Rating: 6 (1 Soft-10 Stiff) The 3-D Molded Tongues wrap your foot for easier lacing, improved fit and heel hold. This design also gives 32 the ability to control the stiffness of each model for customized flex and improved response.
Construction
The Level 2 footbed has a soft EVA heel pad for additional cushioning, molded EVA for anatomical support and cushioning, molded TPU for heel and arch support, a mesh topsheet for comfort, and perforations for breathability.
Liner and Lacing
The Level 3 Liner has Soft Top Cuffs for cushioning around the calf, anatomical Ultralon overlays inside for optimal heel hold, dual-density Soft Touch Ultralon foam for added comfort and warmth, external overlays for support and response, Aegis™ anti-microbial coating to eliminate odor, and an all new Velcro closure.
Special Features
Designed in the STI Lab, the STI Evolution Foam™ provides better cushioning than traditional foam materials and dramatically reduces the weight by eliminating the need for a heavy rubber outsole.