Giro Prolight  Easton EC90 SLX Carbon soled Road Shoe
MSRP $360+

The Prolight SLX redefines fit, feel and power-to-weight performance in a lightweight shoe. Starting with a select Teijin microfiber upper that shapes to your foot like a second skin, Giro added an ultralight EVA footbed plus a SuperNatural Fit Kit footbed with adjustable arch support so you can customize the fit to match your needs. The high-modulus Easton® EC90 SLX outsole is exceptionally thin and light yet provides best-in-class stiffness for maximum power transmission. Titanium hardware reduces weight even further. If you’re looking for the lightest pro-level shoe without compromise, this is it.

Giro shoes are significantly different from shoes of other producers in three points: the last, the individual customization of the arch and the carbon outsoles, developed with carbon specialist Easton®.

The last: To reach the best fit, the perfect last is necessary. The lasts of Giro are developed by a team of shoe designers, last experts, biomechanics and professional bikers. They were re-engineered 16 times and had to proof themselves over thousands of testing kilometers on the road.

The arch support: The biker's foot needs the right support to ensure an efficient power transfer to the pedal. Without this support, the foot fatigues more quickly, the comfort and fit of the shoe get meager and even the biker's force decreases. The Giro SuperNatural Fit System combines a bike-specific footbed with an ingeniously easy adaptable arch support. The fit and the hold of the heel get improved and the foot stays as near as possible on the pedal. Typical problems like hypersensitive spots, numbness and cramping appeare more rarely or even no more longer at all. The 3 included different arch support your individual choice. The chosen arch gets attached with velcro strip to the SuperNatural Fit footbed. Through them fit and comfort can be individually adapted: Large (red) = maximum height, Medium (orange) = medium height and Small (green) = lowest height.

The sole: Giro uses the know-how of carbon specialist Easton® to develop the outsole. The result is a sole with maximum stiffness without weight increase or losings in comfort and fit, just according to demands of professional bikers. The soles come with a thickness as thin as possible with max. 6,5mm at the cleat threads. This extremely low sole profile enables a flat, smooth transition between upper and sole.

Features
  • Teijin microfiber upper shapes to your foot
  • Three offset Velcro straps
  • Easton EC90 SLX unidirectional carbon sole
  • SuperNatural Fit Kit with 3 different arch supports

How it Fits

  • Heel Cup: Medium
  • Toe Box Height: Medium
  • Toe Box Width: Medium
  • Arch Structure: Dependent on insert
Actual Weight
  • 212g per shoe (size 44)

Please see or ask for measurements of the insoles we are providing as a reference if unclear on sizing to determine proper fit. 

EU 42 / US 8.75

EU 42.5/ US 9 (Overall length of insole, 265mm. Width at the forefoot area, 90mm)

EU 43/ US 9.5 (Overall length of insole, 272mm. Width at the forefoot area, 91mm)

EU 44 / US 10.25  (Overall length of insole, 277mm. Width at the forefoot area, 92mm)

EU 44.5 / US 10.75  (Overall length of insole, 278mm. Width at the forefoot area, 92mm)

EU 45 / US 11 (Overall length of insole, 285mm. Width at the forefoot area, 95mm)

EU 45.5 / US 11.5  (Overall length of insole, 287mm. Width at the forefoot area, 95mm)

EU 46 / US 12  (Overall length of insole, 291mm. Width at the forefoot area, 95mm)

EU 46.5 / US 12.25  (Overall length of insole, 292mm. Width at the forefoot area, 95mm)

EU 47 / US 12.75  (Overall length of insole, 298mm. Width at the forefoot area, 98mm)

Shipping and handling within the US will be included in the purchase price. For international shipping, please contact for an estimate. To most international destinations (Brazil, Mexico, Chile, Russian Federation, Thailand, Ukraine, and others) we require Express Mail International shipping be used. Combined shipping is available and recommended.