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- May 11, 2008
Yeah but he did compare them.can't really compare them - ultraboost are marshmallows, zoom x (in the vaporfly) feels similar when they aren't used for performance activities...then it stiffens up as you get more active (that might just be the carbon plate engaging).
Ultraboost stay squishy - it's bit too soft for a full days wear IMHO. Vapormax are firmer but I find them just as comfortable and more supportive. It's a matter of preference I suppose