Lululemon, which designs and sells yoga-inspired apparel under the lululemon athletica brand in 57 stores, lowered the number of shares expected to be offering in its upcoming IPO Friday. The company plans to offer 16.4 million shares, a 10% decline from the 18.2 million originally anticipated. 14.9 million shares will be offered by selling shareholders. Goldman Sachs and Merrill Lynch are the bookrunners on the deal.