But they weren't shopping - they were swapping.
"We're dropping off the things that don't fit and trying to pick up some new things," said parent Nadine Farmer.
Wednesday's uniform swap at Snyder-Girotti Elementary School in Bristol Borough comes after the school board's decision to makes it a requirement to wear uniforms.
"Last year we started a uniform policy on a volunteer basis and, I would say, 95% of the student population actually bought into it," said Principal Tom Shaffer.
Shaffer says the policy has been a hit among parents not only because it keeps kids focused more on their studies, but it saves them a lot more money in the long run.
"We do have a 65% poverty rate here in the school district," Shaffer said.
As a grandmother on a fixed income, Debra Thomson was happy to take advantage of the free clothing being offered.
"Well, I raise four grandchildren, 10, 8, 5 and 3, and we need help," said Debra Thomson.
She says having to dress three of her school-aged grand children has been no easy feat.
"A lot of money, about $100 $150 that I don't have," she said.
The clothing dropped off at Wednesday's clothing drive will be available all year long. Parents can simply contact a teacher or a member of the PTA.