Nike Air Max 89 - Stab

Oldie but goodie when John Mayer and TMZ had fun in NYC circa 2008 summer (excluding first picture). In both pictures, he is wearing Nike Air Max (1989) - Stab. Of the many color variations made in Stab, these are brown/white version. He's also back in the 80's with those Oakley frogskins.

Nike Air Max 90 Shagmeister

These are a pair that are part of a Air Max '90 Quickstrike Shagmeister Pack. These shoes are specifically named Nike Air Max '90 Quickstrike ACG Shagmeister Reed. More details at kicksonfire.
Other known accessories:
Cell phone - Blackberry Bold
Sunglasses - Mosley Tribe Enforcer