Starting with classic men’s white undershirts, Seeley tucks, pulls, and sews the tees into soft, fitted perfection. “No two T-shirts are the same, like no two dateless evenings are the same,” she says of the line of shirts she’s dubbed “Dateless.” And though some have girly touches — such as pieces of ruffly curtain fabric sewed on in angular lines — the individualized final products are more arty cool than frilly frou-frou. Each “Dateless” shirt is embroidered on the back seam with the date it was created, giving it a teasingly mysterious past. In a three-week stretch in November, Seeley was able to pump out 12 of her tees. (Each shirt takes about three hours to make. You do the math.)

After Louis’s president, Debi Greenberg, noticed Seeley sporting the shirts at work, she decided to give them a go on the store’s racks. But don’t expect a cheap date here: though the shirts’ origins may be grounded in rough, manly simplicity, Seeley’s artistic touches jack up the original five-and-dime price to a runway figure ($125). Still, sticker shock didn’t faze customers when the first batch appeared. “They were all gone in two and a half weeks — with no promotion,” says the incredulous Seeley.

All this success, however, presents something of a Catch-22 for the entrepreneur, who won’t say whether she’s currently dating anyone. After all, the fewer dates she has, the better her start-up side project will fare. Would finding a boyfriend mark the end of this promising endeavor? “Hopefully not,” Seeley says, laughing. “Dateless T-shirts could still be made on the day that you’re not seeing that person.”

Seeley’s success may keep her dateless, though. After her shirts were snatched off the racks, she spent a recent weekend whipping out more than five new ones. “She’s going to be committed to making them every night,” promises Jessica Wilmot, a spokeswoman for Louis, the shirts’ exclusive vendor in Boston.

Seeley’s suitors had best take note: even if she’s in the market, this designer may not be able to schedule a date for a long, long time.

Seeley’s “Dateless” tees are available at Louis, Boston, 234 Berkeley Street, (617) 262-6100.

Stuck at home without a date, some would opt for a self-indulgent evening of fatty foods and trashy movies. But not Stephanie Seeley. The 29-year-old visual director of the classy clothing store Louis, Boston recently started producing one-of-a-kind T-shirts as mementos of each night she was holed up alone.

Starting with classic men’s white undershirts, Seeley tucks, pulls, and sews the tees into soft, fitted perfection. “No two T-shirts are the same, like no two dateless evenings are the same,” she says of the line of shirts she’s dubbed “Dateless.” And though some have girly touches — such as pieces of ruffly curtain fabric sewed on in angular lines — the individualized final products are more arty cool than frilly frou-frou. Each “Dateless” shirt is embroidered on the back seam with the date it was created, giving it a teasingly mysterious past. In a three-week stretch in November, Seeley was able to pump out 12 of her tees. (Each shirt takes about three hours to make. You do the math.)

After Louis’s president, Debi Greenberg, noticed Seeley sporting the shirts at work, she decided to give them a go on the store’s racks. But don’t expect a cheap date here: though the shirts’ origins may be grounded in rough, manly simplicity, Seeley’s artistic touches jack up the original five-and-dime price to a runway figure ($125). Still, sticker shock didn’t faze customers when the first batch appeared. “They were all gone in two and a half weeks — with no promotion,” says the incredulous Seeley.

All this success, however, presents something of a Catch-22 for the entrepreneur, who won’t say whether she’s currently dating anyone. After all, the fewer dates she has, the better her start-up side project will fare. Would finding a boyfriend mark the end of this promising endeavor? “Hopefully not,” Seeley says, laughing. “Dateless T-shirts could still be made on the day that you’re not seeing that person.”

Seeley’s success may keep her dateless, though. After her shirts were snatched off the racks, she spent a recent weekend whipping out more than five new ones. “She’s going to be committed to making them every night,” promises Jessica Wilmot, a spokeswoman for Louis, the shirts’ exclusive vendor in Boston.

Seeley’s suitors had best take note: even if she’s in the market, this designer may not be able to schedule a date for a long, long time.

Seeley’s “Dateless” tees are available at Louis, Boston, 234 Berkeley Street, (617) 262-6100.