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Fit to perform

Delivering fit solutions purpose-built for performance, the Boa® Fit System consists of three integral parts: a micro-adjustable dial, super-strong lightweight laces and low friction lace guides. Each unique configuration is engineered to deliver fast, effortless, precision fit.

Lightweight comfort and breathability.

Supple synthetic micro-fiber upper offers optimal fit and breathability. Strategically placed laser-cut holes for added ventilation. 3D EVA tongue hugs the foot in just the right places for maximum comfort. High-quality Ortholite insole for long-lasting comfort and performance. Roomier toe box.

Efficient power transfer.

Nylon and fiberglass sole is stiff for performance and power, but comfortable enough for all-day rides.
With a streamlined look and the Boa® Fit System, this lightweight road shoe is inspired by mountains and the climbing stages of cycling's grand tours.

The BOA® Fit System makes it easy to dial in your perfect fit. You can make instant micro-adjustments for a precision fit to improve your comfort and pedaling efficiency. The lightweight, breathable upper is made with supple synthetic micro-fiber and strategically placed laser-cut holes for added ventilation. The toebox is slightly wider for added comfort, and the Ortholite insole gives you long-lasting comfort and performance.

Beyond its comfort and adjustability, the Cosmic Boa also delivers high-performance power transfer with a nylon and fiberglass outsole. It’s designed to be stiff enough for optimal efficiency but also comfortable for all-day rides.

Weight

  • 250 grams (Shoe)

Sole

  • Energy Comp Outsole

Upper

  • OrthoLite®
  • Boa® Fit System L6

Product details

  • Rubber pads
AVERAGE FOOT LENGTH (in cm)
22.7
23.0
23.5
24.0
24.4
24.8
25.2
25.6
26.0
26.5
26.9
27.3
27.7
28.0
28.6
29.0
29.4
29.9
30.3
30.7
EUR
22.7 cm: 36
23.0 cm: 36 ⅔
23.5 cm: 37 ⅓
24.0 cm: 38
24.4 cm: 38 ⅔
24.8 cm: 39 ⅓
25.2 cm: 40
25.6 cm: 40 ⅔
26 cm: 41 ⅓
26.5 cm: 42
26.9 cm: 42 ⅔
27.3 cm: 43 ⅓
27.7 cm: 44
28.0 cm: 44 ⅔
28.6 cm: 45 ⅓
29.0 cm: 46
29.4 cm: 46 ⅔
29.9 cm: 47 ⅓
30.3 cm: 48
30.7 cm: 48 ⅔
UK
22.7 cm: 3.5
23.0 cm: 4
23.5 cm: 4.5
24.0 cm: 5
24.4 cm: 5.5
24.8 cm: 6
25.2 cm: 6.5
25.6 cm: 7
26 cm: 7.5
26.5 cm: 8
26.9 cm: 8.5
27.3 cm: 9
27.7 cm: 9.5
28.0 cm: 10
28.6 cm: 10.5
29.0 cm: 11
29.4 cm: 11.5
29.9 cm: 12
30.3 cm: 12.5
30.7 cm: 13
US UNISEX
22.7 cm: 4
23.0 cm: 4.5
23.5 cm: 5
24.0 cm: 5.5
24.4 cm: 6
24.8 cm: 6.5
25.2 cm: 7
25.6 cm: 7.5
26 cm: 8
26.5 cm: 8.5
26.9 cm: 9
27.3 cm: 9.5
27.7 cm: 10
28.0 cm: 10.5
28.6 cm: 11
29.0 cm: 11.5
29.4 cm: 12
29.9 cm: 12.5
30.3 cm: 13
30.7 cm: 13.5
JAPAN
22.7 cm: 22
23.0 cm: 22.5
23.5 cm: 23
24.0 cm: 23.5
24.4 cm: 24
24.8 cm: 24.5
25.2 cm: 25
25.6 cm: 25.5
26 cm: 26
26.5 cm: 26.5
26.9 cm: 27
27.3 cm: 27.5
27.7 cm: 28
28.0 cm: 28.5
28.6 cm: 29
29.0 cm: 29.5
29.4 cm: 30
29.9 cm: 30.5
30.3 cm: 31
30.7 cm: 31.5
Energy Comp Outsole

Energy Comp Outsole

A light, stiff and thin outsole
OrthoLite®

OrthoLite®

A high-quality insole designed to prolong comfort performance and reduce vibration
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