Adidas Adizero SL 2 vs Nike Run Defy

The Adidas Adizero SL 2 is a road running shoe and the Nike Run Defy is a neutral road running shoe. The Run Defy costs about $15 less (from $49.97).

Adidas Adizero SL 2

Adidas

Adizero SL 2

4.7 (461)

$65

Shop at Adidas→ Colors & full specs →

Nike Run Defy

Nike

Run Defy

4.7 (240)

$49.97

Shop at Nike→ Colors & full specs →

Specs side by side

Spec	Adizero SL 2	Run Defy
Price	$65	$49.97
Rating	4.7 / 5 (461 reviews)	4.7 / 5 (240 reviews)
Weight	8.4 oz	8.2 oz
Heel-to-toe drop	9 mm	10 mm
Heel stack height	36 mm	—
Support	—	Neutral
Surface	Road	Road
Available for	Men	Men & Women

Specs and prices from Adidas and Nike, checked 2026-10-11. Weight is usually for a men's size 9–10.

Which should you get?

Get the Adizero SL 2 if…

it fits you better or you like its colors

Get the Run Defy if…

you want to spend less

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