CoreScore breakdown
0 reviews · 0 expert tests
Adidas
X Crazyfast.1 FG
Insanely fast. Insanely light.
Best for
Not ideal for
Verdict
The Adidas X Crazyfast.1 FG is one of the top-rated shoes in its class — a speed — fg scoring 91/100 in SoleHunt's data-driven evaluation, drawing on 0 consumer reviews and 0 independent expert tests. Tipping the scales at 165g, it is notably lightweight for a speed — fg. The 12mm heel stack — a minimal stack — delivers a firm ride at 54 HC, returning 72% of impact energy and feeling exceptionally bouncy underfoot. Geometrically, the X Crazyfast.1 FG runs on a near-zero 0mm drop built for natural gait and forefoot-first runners, with a 12mm forefoot stack that creates a naturally ground-hugging feel. Fit-wise, the toebox measures 86mm — narrower, best for slimmer feet — and the upper comes in a standard width. Very narrow and low-volume. Go half to full size up. It is designed for speed wingers, natural grass, elite level play, sprinters, and performs less well for wide feet or artificial turf.
Lab measurements
Weight
165g
UK size 9 men's
Heel drop
0mm
Zero drop
Heel stack
12mm
Forefoot stack
12mm
Midsole hardness
54HC
Firm
Energy return
72%
Higher = bouncier
Toebox width
86mm
Breathability
80/100
Outsole grip
90/100
Flexibility
88/100
Heel counter
3/5
Ankle hold
Sustainability
18%
Recycled content
Fit guide
Sizing specs
Best for
Not ideal for
Price tracker
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Construction
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Signals
Synthesized from common user reports via AI analysis. Confidence-weighted.