Name: COS SLR U-PRNBLU/FUSH 3.5
Brand: Mavic
SKU: S00052270
Price: 3690 USD
Availability: InStock
Rating: 5 (3 reviews)

The Cosmic SLR is a road cycling shoe designed for performance rides, races, and intensive training. Its upper made of patented Matryx® fabric provides precise support while remaining breathable. The BOA® Fit system with two L6 dials independently adjusts the forefoot and instep for a precise fit. Underfoot, the carbon composite sole maximizes power transfer to the drivetrain. PU-coated Matryx® threads and front-foot ventilation in the sole promote airflow when temperatures rise. Weighing 270 g per shoe in UK size 8.5, you’ll keep your setup lightweight.

Main features

Dual L6 BOA® fit system across two zones for consistent support

Two BOA® L6 dials allow for micro-adjustable tightening across two zones. You can fine-tune the fit of the forefoot and instep separately, keeping the foot stable during sprints and when riding out of the saddle, without having to over-tighten the entire shoe.

Matryx® woven upper and PU-coated threads for effective ventilation

The woven Matryx® upper combines high-tenacity fibers and a patented weave to support the foot while allowing air to circulate. The PU-coated threads and front vents integrated into the sole increase breathability, which is useful during intense activity and in high temperatures.

80/100 index carbon composite sole: direct power transfer

The carbon composite sole features an 80/100 stiffness rating to efficiently transfer your power to the pedal.
The 3-bolt road cleat system (Look, SPD-SL type) ensures a secure fit.
Reference weight: 270 g per shoe in UK size 8.5, with rubber heel pads for grip when the foot is on the ground.

Specifications

Weight (8,5UK) per shoe : 270 g

Cyclists' opinions

Overall ratingAverage

5.0

12345

3 reviews

5 stars 34 stars 03 stars 02 stars 01 star 0

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ThanosExpert

12345

1/15/26

“The Mavic Cosmic SLR Road Shoes deliver top-tier performance with a clean, race-focused feel. The carbon sole is incredibly responsive, and the closure system gives a precise, secure fit without pressure points. On the bike they transfer power effortlessly, and the overall comfort feels natural from the first ride. These aren’t just high-end shoes — they’re a serious performance upgrade for riders who want efficiency, breathability, and quality craftsmanship. Absolutely worthy of their flagship status.”

Jean-marcAmateur (1–2 rides per week)

12345

1/14/26

“Super ”

MarcelAmateur (1–2 rides per week)

12345

8/14/25

“Très bonnes chaussures. Les couleurs en photo ne correspondent pas à la réalité : moins franches, plus pâles.”