Fi'zi:k knows that triathlon shoes play by a different set of rules. Your time can't be wasted on ratcheting buckles, and your feet can't be berated by an ultra-stiff outsole. Basically, triathlon shoes require a system of compromises, yet speed and comfort must still play a vital role. Well, the Fi'zi:k K1 Uomo Shoes have all of these bases covered. With a custom-moldable insole and a stiff, yet compliant, carbon fiber outsole, the K1 checks off all of your boxes for a perfect triathlon shoe.
At the uppers, Fi'zi:k used a material that we don't see in use very often with cycling shoes -- neoprene. We know what you're thinking, how hot is it inside these shoes? The answer? Not hot at all. In fact, aside from the ample perforation and ventilation panels, this material is highly breathable. It was used over the Fi'zi:k-standard, Microtex, for its water-resistance and ease-of-entry with wet feet. So, your transition from sea to land won't be slippery.
To further control slippage, the K1 Uomo has shaped the heel cup at the aft position of the shoe. This feature keeps the foot in the perfect position on hard up-strokes and while climbing out of the saddle. As a result, you're powering the pedals comfortably and efficiently. This has been further heightened by Fi'zi:k's variable stiffness sole construction, called 3D Flex Carbon. The base is comprised of an ultra-stiff carbon fiber plate, with second layer being positioned closer to the heel. This layer is constructed from a material called Tepex that's a little more malleable than the carbon fiber in order to accommodate and support multiple heel and arch sizes. Together, the multiple layers work hand-in-hand with the insole and upper to keep the heel in place and to maximize comfort. And even better for triathletes, the outsole has been design to allow a good deal of lateral flex. So, your feet will experience less fatigue, maximizing your run potential after T2.
And on the subject of the K1's comfort, Fi'zi:k has gone to another level with its 3D Flex Insole design. This insole is heat moldable and fully customizable for the three areas of the foot -- the longitudinal arch, metatarsal button, and the heel cup. To develop this, Fi'zi:k teamed up with Sidas Technologies of France for the design process, and three materials were decided upon. At the metatarsal and longitudinal arches, the insole features the Podiaflex material. Podiaflex was selected for the arch, because its highly moldable properties allow it to perfectly support and conform to your arches. To absorb road vibration and chatter, Fi'zi:k placed Ortholite along the pedal axle portion of the insole. This material is a low-rebound foam and has been cut to the average size of pedal. Having this in place nearly eliminates the numbness generated from long miles clipped-in on the road. Finally, encompassing the heel cup, we the solid and supportive, thermoplastic known as Transflux. Working as a system, we see that the 3D Flex design evenly distributes pressure on the foot, or as Fi'zi:k says, 'the insole is supportive, not corrective or obtrusive.'
For fit, Fi'zi:k incorporated a one-strap closure system, mated with a 'burrito-wrap' upper. What does this mean? Well, the K1 features an opening that runs over nearly the entire top of the shoe. The burrito analogy is drawn from the K1's upper construction where one layer of the upper wraps over the other. This allows you to really dial in the volume of the shoe, whether it be for training or on-the-fly during a race. For your T1 transitions, the two-strap closure system is a breeze. The large top strap opens away from the drivetrain to allow a quick and seamless securing of the shoe. As for the bottom strap, you'll find that this is used less for transitions, and more left alone once you've established your desired volume and fit. However, the gripper tabs placement on the strap simplifies any adjustments that you might need to make from the saddle. To really speed up T1, Sidi has also included a durable pull-tab at the heel.
The Fi'zi:k K1 Uomo Shoes are available in the color Black/neon lime and in whole and half sizes from 40.0 to 48.0.Please go to Fi'zi:k's official website for instructions on how to mold the 3D Flex Insoles.
2 hook-and-loop straps
[size 43] 219 g
Terms And Conditions
This Usage Agreement (the "Agreement") governs your conduct while using various services on the web site Competitive Cyclist and its affiliate web sites (collectively, the "Site"). All references to "we," "us," and "our" shall mean Competitive Cyclist and all references to "you" and "your" shall mean the user of the Site and Site Services. This Agreement applies to various services and activities on the Site as well as to gear review and product ratings (collectively, "Site Services"). Please read this Agreement carefully.
BY ACCESSING, BROWSING, AND USING THE SITE, ANY SITE SERVICES AND OTHER SERVICES THEREIN, YOU AGREE TO BE BOUND BY THIS AGREEMENT AND ITS TERMS. IF YOU DO NOT AGREE TO THIS AGREEMENT OR ANY SUBSEQUENT MODIFICATION THEREOF, DO NOT ACCESS, BROWSE OR OTHERWISE USE THE SITE OR SITE SERVICES, INCLUDING THE SUBMISSION OF ANY REVIEWS OR COMMENTS.
Any comments, reviews (including gear reviews and product ratings), posts, feedback, questions, answers, notes, messages, images, video, audio, materials, documents, data, graphics, ideas, suggestions or other communications (collectively, "User Content") you submit on the Site are not private or proprietary. By submitting User Content on or through the Site, you grant, assign and transfer to Competitive Cyclist all of your rights, title and interest, including without limitation, all intellectual property rights and moral rights, in and to such User Content. To the extent the preceding assignment and transfer is ineffective, you hereby grant Competitive Cyclist an irrevocable, royalty-free, worldwide, perpetual right and license to use, copy, modify, adapt, display, publish, archive, store, distribute, reproduce and create derivative works based upon such User Content, in any form, media, software or technology of any kind now existing or developed in the future.
By submitting such User Content on or through the Site, you are confirming that (a) you are the sole author of the User Content and the User Content originated with you and not copied in whole or in part from any other work; (b) you have obtained all necessary permissions associated with the User Content, including without limitation permissions relating to copyrights, trademarks, rights of publicity and/or rights of privacy; (c) the User Content does not contain hate speech or profanity and is not unlawful, threatening, abusive, harassing, tortuous, defamatory, vulgar, libelous, obscene, racially, ethnically or otherwise objectionable, an invasion of another's privacy, or otherwise in violation of this Agreement; (d) that you are not a minor and have the legal right and capacity to enter into and comply with this Agreement; (e) such User Content does not and will not, in any way, violate or breach any of the terms of this Agreement; and (f) Competitive Cyclist shall not in any circumstances be required to pay or incur any sums to any person or entity as a result of its use or exploitation of the User Content.
With respect to your conduct on the Site or while using the Site Services, you agree not to: (a) attempt to disguise the origin of any User Content transmitted to the Site Services whether through the Site or any third party site; (b) act in any manner that negatively affects other users' ability to use the Site and Site Services; (c) impersonate any person or entity, including without limitation, a manufacturer or owner of any product, or falsely state or otherwise misrepresent your affiliation with a person or entity; (d) interfere with the Site or Site Services, or servers or networks connected to the Site or Site Services, or disobey any requirements, procedures, policies, or regulations of networks connected to the Site or Site Services; (e) upload, post, or otherwise transmit any User Content that with respect to the Site Services: (i) is not relevant to the product, service, person or entity being reviewed; (ii) you do not have a right to transmit under any law or under contractual or fiduciary relationships (by way of example but not limitation, inside information, proprietary and confidential information learned or disclosed as part of employment relationships or under nondisclosure agreements); (iii) contains software viruses or any other computer code, files or programs designed to interrupt, destroy or limit the functionality of any computer software or hardware or telecommunications equipment; or (iv) is unsolicited or unauthorized advertising, promotional materials, "junk mail," "spam," "chain letters," "pyramid schemes," or any other form of solicitation.
User Content does not reflect the views of Competitive Cyclist, and Competitive Cyclist does not represent or guarantee the truthfulness, accuracy, completeness, timeliness, integrity, quality or reliability of any User Content, nor does Competitive Cyclist endorse or support any opinions expressed in any User Content. In no event shall Competitive Cyclist have or be construed to have any responsibility or liability for or in connection with any User Content, Any gear reviews and/or product ratings submitted on the Site, if displayed, are displayed for entertainment and informational purposes only. Under no circumstances will Competitive Cyclist be liable in any way for any User Content, including but not limited to, any errors or omissions in any User Content, or for any loss or damage of any kind incurred as a result of the use of any User Content posted, emailed or otherwise transmitted via the Site or Site Services.
If Competitive Cyclist determines, in our sole and absolute discretion, that you or any User Content you submit violates this Agreement, we reserve the right, at any time, without notice and without limiting any and all other rights Competitive Cyclist may have under this Agreement, to: (a) refuse to allow you to submit further User Content; (b) remove and delete your User Content; (c) revoke your registration and right to use the User Content Submission Features; and (d) use any technological, legal, operational or other means available to enforce the terms of this Agreement, including, without limitation, blocking specific IP addresses or deactivating your registration, access to the Site and Site Services using your e-mail address, and your user name and password. Without limiting the foregoing, once User Content is submitted to the Site, Competitive Cyclist may take any or no action with respect to such User Content, including without limitation, deleting, editing, modifying, rejecting, or refusing to post such User Content, but is under no obligation to offer you the opportunity to edit, delete or otherwise modify User Content once it has been submitted. Competitive Cyclist shall have no duty to attribute authorship of User Content to you and shall not be obligated to enforce any form of attribution by third parties.
If, despite the foregoing assignment and transfer of rights in the User Content, it is determined that you retain moral rights (including the rights of attribution or integrity) in the User Content, you hereby declare that: (a) you do not require that any personally identifying information be used in connection with the User Content or any derivative works of or upgrades or updates thereto; (b) you have no objection to the publication, use, modification, deletion and exploitation of the User Content by Competitive Cyclist or its licensees, successors or assigns; (c) you forever waive and agree not to claim or assert any entitlement to any and all moral rights of an author in any of the User Content; and (d) you forever release Competitive Cyclist, and its licensees, successors and assigns from any claims that you could otherwise assert against Competitive Cyclist by virtue of any such moral rights.
You are prohibited from violating the security of any system or network compromising the Site or the Site Services, including but not limited to the following: (a) unauthorized access to or use of data, systems, or networks, including any attempt to probe, scan or test the vulnerability of the Site or Site Services or to breach security or authentication measures; (b) unauthorized monitoring of data or traffic on the Site or of the Site Services; (c) interference with the Site or Site Services including without limitation, any type of flooding technique or deliberate attempt to overload the system such as denial or service attacks; (d) forging of a message header or any part of a message header; or (e) using manual or electronic means to avoid any use or access limitation placed on this Site or the Site Services. Such violations may result in criminal or civil liability.
Competitive Cyclist reserves the right to report any activity or persons that Competitive Cyclist suspects has violated any law or regulation to appropriate law enforcement officials, regulators, or other appropriate third parties (including the disclosure of appropriate subscriber information). Competitive Cyclist may also cooperate with appropriate law enforcement agencies to assist in the investigation and prosecution of any illegal conduct. Indirect or attempted violations of this Agreement and actual or attempted violations thereof by a third party on behalf of any user shall be considered violations of this Agreement by such user.