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Castelli Unlimited Ultimate Liner


The Castelli Unlimited Ultimate Liner is built for long, rough rides and compatibility with baggy shorts, and pairs comfort with unrivalled ventilation for those planning to spend all day adventuring. .. Read more

SKU: CS220130101


The Castelli Unlimited Ultimate Liner is built for long, rough rides and compatibility with baggy shorts, and pairs comfort with unrivalled ventilation for those planning to spend all day adventuring. 

The liner is built around the luxuriously comfortable Progetto X² Air Seamless Seat Pad. Constructed with two densities of foam and gel pads to absorb vibrations and improve ride quality, not to mention a soft upper layer that moves with the skin, this pad offers optimal long-distance comfort. 

Castelli’s 170g compressive yet breathable Force fabric holds that pad just where it needs to be, while the GIRO Air elastic leg grippers mean you can easily lengthen or shorten the legs to fit under your baggies. Between these two sections, the whole leg is made of perforated fabric that allows heat to escape and air to circulate freely.

This cooling effect is continued at the top since, like the Free Aero RC Pro Bib Shorts, the Castelli Unlimited Ultimate Liner has minimalist, breathable mesh bib straps that stay firmly in place thanks to a reinforced yolk. 

With all these amazing features, not to mention 3 rear pockets, this liner gives you all the performance of Castelli’s best racing bib shorts, so that you can wear baggies and still achieve the pinnacle of ride enjoyment. 

Key Features

  • Designed for compatibility with baggy shorts
  • Built around the Progetto X² Air Seamless Seat Pad
  • Force fabric through hips keeps pad in place
  • Perforated leg panels and minimalist bib straps promote ventilation
  • GIRO Air leg grippers hold legs in place
  • 3 rear pockets
  • Weight: 179g (M)

ABOUT Castelli

Castelli Cycling is the most innovative, stylish and prestigious cycling clothier in the world. Decades of pro cycling development and a passion for perfection in materials, cut and performance has seen the brand reinvent cycle wear time after time. From the first Lycra shorts to sublimated printing, the game-changing Gabba and aerodynamic apparel, Castelli continues to set a path that others can only follow while maintaining generations of Italian heritage. Read more about Castelli.


Founded by real cycling enthusiasts in 2004, our passion for elite performance runs through everything we do at Saddleback. Our team of dedicated roadies, mountain bikers and triathletes practice what we preach to bring you the finest cycling products and a superior service to match. We're the official UK home of Castelli, Chris King, ENVE, HJC, Moots Cycles, PUSH, Sidi, Silca, Sportful, Stages, Troy Lee Designs and Wolf Tooth.


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