R4B Donna Boa Cycling Shoe - Women's
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The Fizik women's R4B Donna Boa Shoes are, essentially, a slightly less "pro" version of the R1B shoes turning cranks in the peloton for 2016. Like its pro-tier counterpart, the R4B has a low-cut ankle profile that allows for unrestricted pedaling motion and helps to trim some grams off the overall weight. Unlike the R1B, the R4B's outsole is a carbon-injected nylon, and instead of a complete realization of the Volume Control system, the R4B features an asymmetric wrapping closure.
The R4B's fastening system is built on a single Boa IP1 dial that pulls the upper across the foot, wrapping it rather than just cinching it down. This helps eliminate long-ride discomfort by evenly distributing the pressure across the entire foot. While we won't be surprised to see this asymmetric design eventually appear across Fizik's shoe line, only the top-tier R1B currently features a similar construction. The shoes are finished with two hook-and-loop straps across the metatarsals and toe box, allowing targeted volume in the areas that are prone to discomfort caused by restriction.
Details
- Fizik brings its touchpoint expertise to cycling footwear
- Carbon-injected sole is stiff without the full-carbon tax
- Synthetic upper conforms without deforming and suffocating
- Low-profile Boa wire dial ensures a secure fit across the midfoot
- Straps let you target metatarsal expansion and reduce hotspots
- Asymmetric straps reduce localized pressure
- Item #FIZ003S
- Upper Material
- microtex
- Closure
- Boa IP1, 2 hook-and-loop straps
- Footbed
- Fizik Cycling Insole
- Sole
- Injected composite carbon vented
- Cleat Compatibility
- 3-bolt road
- Claimed Weight
- [size 42.5, single] 250g
- Recommended Use
- road cycling
- Manufacturer Warranty
- 2 years
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