Old friends at Phidippides Encino, my favorite running shop in the Los Angeles area, sent the following blurb in their May newsletter (http://phidippidesencino.com/):

“Virtually every manufacturer we deal with is announcing price increases and sending warning letters out that even steeper price increases on the order of 12-20% will follow over the next 6-12 months.  China is now the source for over 90% of the shoes sold in the US and the cost of doing business in China has skyrocketed – labor laws and environmental laws have changed; the dollar has fallen against nearly every currency in the world… Add in the cost of petroleum (the raw material for EVERY part in your running shoes), and the impact that oil prices have on the cost of transportation of raw materials and finished goods and you can see why these price increases are inevitable.”