Shoe Carnival Inc. said its profit and sales fell for the fiscal second quarter as manufacturing and supply-chain challenges weighed on the availability of certain supplies, pressuring same-store sales.

The footwear and accessories retailer posted net income of $28.9 million, compared with $44.2 million in the year-ago period. Earnings were $1.04 a share, compared with $1.54 a share.

Analysts surveyed by FactSet were looking for earnings of $1.02 a share.

Net sales for the three months ended July 30 fell to $312.3 million from $332.2 million a year ago. Analysts surveyed by FactSet were expecting sales of $346 million.

Compared with the second quarter of fiscal year 2019, prior to the Covid-19 pandemic, net sales rose more than 16%.

Comparable-store sales fell almost 14%, driven by a decrease in sales of athletic supplies, Shoe Carnival said. The company said Covid-19-related manufacturing and supply-chain disruptions "significantly constrained the availability of athletic shoes."

The company said gross profit margin fell 470 basis points from a year earlier, primarily due to higher costs, including freight and fuel expenses, and the de-leveraging effect of lower sales on buying, distribution and occupancy costs.

Write to Will Feuer at Will.Feuer@wsj.com

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