Mavic

Cosmic SLR Cycling Shoe

What Our Gearhead® Experts Are Saying:

"I set the Cosmic SLR up on a race-focused road build and the dual BOA L6 system is one of the more dialed closure setups I've used, giving me genuinely independent control over instep and forefoot tension before and during a ride. The Matryx upper holds its shape under hard efforts without creating hotspots, and at 270g per shoe the weight savings are real and noticeable over the course of a long stage. The 80/100 stiffness rating on the carbon composite sole keeps power transfer crisp without the harsh ride quality you sometimes get from a full carbon setup."

Race shoes live or die by their ability to stay out of the way, and the Mavic Cosmic SLR Cycling Shoe earns its place in a performance build by doing exactly that. Whether the objective is a solo breakaway effort, a sustained climb on a mountainous gran fondo, or the controlled chaos of a road sprint, the Cosmic SLR keeps the rider connected to the bike with a fit that stays consistent from the first pedal stroke to the last. Mavic has a long history of building road performance footwear around real-world race demands, and the Cosmic SLR reflects that heritage in every material and design choice.

The upper is constructed from a Matryx® woven fabric reinforced with polyurethane, a combination that provides structural integrity and a locked-in fit without adding unnecessary weight or restricting airflow. High-tenacity fibers within the weave resist stretch under load, keeping the foot stable during hard accelerations and sustained power efforts. Front vents paired with PU-coated yarns channel air through the shoe during high-output efforts, making the Cosmic SLR a strong choice for warm-weather racing and training where heat management affects both comfort and performance. Closure is handled by the dual BOA® L6 Fit System, which places independent dials at the instep and forefoot to allow precise, zone-specific tension adjustments on the fly without interrupting a ride. This level of granular fit control is particularly valuable for riders who experience pressure asymmetry between foot zones or who adjust tension as the foot swells across long efforts.

The composite nylon carbon fiber sole carries a stiffness rating of 80 out of 100, positioning the Cosmic SLR firmly in race territory without the punishing rigidity of a full competition carbon sole. That measured stiffness delivers efficient, direct power transfer across the pedal stroke while preserving enough compliance to remain comfortable over extended race distances. At 9.5 ounces per shoe in a US 9, the Cosmic SLR is competitive with the lightest options in the performance road category. The 3-bolt cleat platform is compatible with Look Kéo, Shimano SPD-SL, and other standard road systems, making this shoe a versatile fit across a wide range of road pedal setups used in training and competition. Rubber heel pads round out the build with durability and traction for pre-race staging and transitions.