Sarah Palin’s wardrobe joined the ranks of symbolic political excess on Wednesday, alongside John McCain’s multiple houses and John Edwards’s $400 haircut, as Republicans expressed fear that weeks of tailoring Ms. Palin as an average “hockey mom” would fray amid revelations that the Republican Party outfitted her with expensive clothing from high-end stores.

Cable television, talk radio and even shows like “Access Hollywood” seemed gripped with sartorial fever after campaign finance reports confirmed that the Republican National Committee spent $75,062 at Neiman Marcus and $49,425 at Saks Fifth Avenue in September for Ms. Palin and her family.

Advisers to Ms. Palin said on Wednesday that the purchases  which totaled about $150,000 and were classified as “campaign accessories”  were made on the fly after Ms. Palin, the governor of Alaska, was chosen as the Republican vice-presidential candidate on Aug. 29 and needed new clothes to match climates across the 50 states. They emphasized, too, that Ms. Palin did not spend time on the shopping, and that other people made the decision to buy such an array of clothes.

Yet Republicans expressed consternation publicly and privately that the shopping sprees on her behalf, which were first reported by Politico, would compromise Ms. Palin’s standing as Senator McCain’s chief emissary to working-class voters whose salvos at the so-called cultural elite often delight audiences at Republican rallies.