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April 30 (Reuters) - Surfing-inspired apparel maker Volcom Inc (VLCM.O: Quote, Profile, Research) beat market estimates with a 70 percent rise in first-quarter profit as earlier-than-expected shipments of its products boosted sales, and raised its 2008 earnings outlook, sending its shares up as much as 17 percent.

The company's results were helped by an early Easter holiday, a better-than-planned quarter with No. 1 customer Pacific Sunwear of California Inc (PSUN.O: Quote, Profile, Research), a shift in orders from the second quarter to the first quarter and strong business from its Electric acquisition and Europe, CEO Richard Woolcott said in a conference call.

Easter fell on March 23 this year compared with April 8 last year making it the earliest Easter since 1913, according to the National Retail Federation.

Costa Mesa, California-based Volcom, which makes edgy clothing for young men and women, posted a first-quarter net profit of $9.3 million, or 38 cents a share, up from $5.5 million, or 22 cents a share, a year earlier.

Total consolidated revenue rose 58.5 percent to $80.6 million.

Analysts on average had expected earnings of 21 cents a share, before special items, on revenue of $69.5 million, according to Reuters Estimates.

Volcom's stellar results contrast those from rival Quiksilver Inc (ZQK.N: Quote, Profile, Research), which faced a cut in reorders from its retailer customers during the first quarter as consumers tighten their purse strings amid falling housing prices, tighter lending conditions and inflationary pressures.

However, the shift in product deliveries to the first quarter and weak retail trends hurt Volcom's second-quarter outlook, which was below Wall Street expectations.