Fischer and ZipFit announce collaboration with new RC4 Pro Alpine ski boot

September 6, 2023

/OUTDOOR SPORTSWIRE/ -Fischer is pleased to announce that for winter 23/24, they will be releasing a one-of-a-kind ski boot dubbed the RC4 Pro. Through a first-time ever collaboration between a ski boot manufacturer and ZipFit, the RC4 Pro models include a customizable ZipFit innerboot. This ski boot is the ultimate fit for those who want the top-of-the-line power transfer and unbeatable downhill performance.

The RC4 PRO boot, winner of the Outside Magazine and Ski Magazine Editor’s Choice Awards for winter 2023/24, is available in MV (medium volume) and LV (low volume) options and is packed with the latest ski boot technologies. The RC4 Pro MV features the new BOA® H+i1 system, which wraps the shell to every foot shape and uses TPU (thermoshape polyurethane) to maximize power transfer and control. The CARBONFUSED® cuff and ZipFit innerboot mean both the RC4 Pro MV and RC4 Pro LV have flex ratings of 140 and provide competition-level performance for skiers looking to charge hard every day on snow.

Christoph Lentz, Boot Product Manager at Fischer, explains about the inspiration for the collaboration with ZipFit: “As a personal believer in the ZipFit product, I sensed that ZipFit innerboots would be the perfect addition to the RC4 Pro line of boots. Mutual synergies between the two brands were also clear from the beginning: Fischer with a very strong presence in Europe and long history of performance skis—ZipFit with a strong North America presence and credibility with competent boot fitters.”

ZipFit is known for their innovative liner technology and attention to detail. Each liner is handmade in Italy, customized to your foot, and offers unmatched durability. For the first time ever, it’s available in a ski boot that is purpose-built for the top-of-the-line power transfer provided by the Zipfit innerboot.

“Fischer set out to make the best alpine ski boot possible and when they approached our team about including a ZipFit liner, they were aligned with our commitment to uncompromising performance,” notes Chris Dominick, Managing Director at ZipFit. “They didn’t ask us to cut corners. The RC4 Pro is a testament to their dedication to design and performance and it’s the first ski boot built with as much attention to the liner as the shell. Working with Fischer was an easy decision because they recognized the quality of a ZipFit liner and understood that to build the best performing alpine ski boot, they needed to have the best performing innerboot at the core. The RC4 is just that, the best alpine boot available with a dynamic and customizable fit.”

Learn more about the RC4 Boot Line.


Fischer’s vision is to be the winter athlete’s brand of choice through outstanding products, created for everlasting moments and new levels of individual performance. The privately held company employs nearly 2000 individuals who all share a passion for and dedication to winter sports. Fischer Sports GmbH was founded in 1924 in Ried im Innkreis, Austria, where the global headquarters is still located. Manufacturing takes place there and in Ukraine. For more information, visit www.fischersports.com

About ZipFit

Founded by Sven Coomer in 1989, ZipFit crafts the best performing ski boot liner incorporating decades of research and design. ZipFit’s legacy reflects that of founder Sven Coomer, who has dedicated more than 60 years of his life to perfecting the connection between foot and ski. Instead of foam, ZipFit uses a proprietary cork composite that retains its shape and transfers energy from the leg to the ski more effectively. ZipFit is built on the tenets of performance, durability, and comfort, which come together in a ski boot liner that can last hundreds of days on the slopes without breaking down or losing its volume. ZipFit is designed in Aspen and handmade in Italy. www.zipfit.com