Spring Forward  Spring 2008 Road Shoe Buyer's Guide  March 3,
2008  Go to the Reviews  Springtime is the time to start doing
faster workouts, the time to start planning for a summer of
racing and, for most of us, the time to buy new shoes. Here's
what you'll see at your running shop this spring:  More techy
buzz  The running shoe business is a marketing guru's dream. For
example, there must be 100 different names for the various forms
of ethylene vinyl acetate (EVA) and other foams found in the
cushy midsole of a shoe. While there are very real differences
among those materials and how they're used in the construction
of a shoe, don't fall prey to glitzy terminology or hyper-
analysis of lab data. Let fit, feel and function guide your
purchases.  Eye candy  Several brands are pushing the envelope
with brilliant hues and functional design tweaks--such as
asymmetrical lacing, seamless uppers and fashion-forward mesh
fabrics--and it's an Olympic year, so you're bound to see lots
of red, white and blue, too. But c