Online consignment marketplace thredUp has woven together another lucrative round of funding.

The six-year-old company announced today it has raised $81 million in a Series E round of funding led by investment bank Goldman Sachs. This brings the total funding raised by thredUp to $131.1 million over six rounds, according to CrunchBase.

The e-retailer plans to use the money to add staff and to double its distribution centers from two to four by the end of next year. ThredUp says its plans to hire 1,000 new employees to help the company continue its growth. ThredUp has distribution centers in California and Pennsylvania totaling 260,000 square feet, and it plans to open a new centers near Atlanta and Chicago next year.

ThredUp doesn’t disclose sales figures, but a company spokeswoman says sales have increased nearly 50% each quarter for the past three years.  The company says visitors to its site grew nearly threefold year over year to 1.8 million in August from 700,000 in August 2014.

CEO James Reinhart said in a statement that a shift in consumer buying habits has helped fuel his company’s growth.

“Consumer adoption is hitting an inflection point right now,” he said. “We saw a huge opportunity to leverage Internet penetration and the growing acceptance of buying and selling online to bring a delightful, frictionless secondhand experience to the masses.”

ThredUp isn’t the only online consignment retailer attracting investor attention. In April, luxury online consignment retailer TheRealReal, No. 239 in the Internet Retailer 2015 Top 500 Guide, announced it had raised a $40 million round of funding for a total of $83 million over five rounds, according to CrunchBase.