Buffalo Exchange targets a wide range of styles and ages with a mix of new and recycled clothing and accessories, including current trends, everyday staples, vintage, one-of-a-kind items, designer and more.

It continues to be owned and operated by Kerstin's daughter, Rebecca Block,[3] and in the last 50 years has expanded to over 40 stores throughout the United States.

Kerstin and her husband, Spencer, rented out a small 400 square foot spot in Tucson, AZ and pioneered the concept of buy-sell-trade for clothing, which was different from existing thrift and consignment models.

The company is known for giving back to the community through initiatives like its annual Earth Day $1 Sale and its Tokens for Bags program.

Widely recognized for its sustainable prices, the brand goes above and beyond to represent an eclectic selection of clothing and accessories while driving home a priority towards customer service.

This would build her original business model of a resale shop where customers could purchase hand-picked gems under one roof and also sell clothes for trade or cash.

Resale at the time was not very popular but Block knew there would be people out there wanting to find unique pieces for a great deal.