OWEENIE is an online retail brand offering themed products organized around interests, professions, animals, and seasonal occasions. Its catalogue features designs for dental and nursing professionals, alongside collections inspired by firefighters, sloths, turtles, frogs, dragonflies, butterflies, dogs, and other subjects. The range also includes themes relating to Black identity, LGBT identity, autism, and Halloween.

Many featured designs use cheerful slogans, playful wordplay, and illustrations. Dental-themed examples celebrate smiles and saving teeth, while Halloween and fall designs feature pumpkins, spooky phrases, and seasonal greetings. The store presents new arrivals and bestsellers, with product listings available to browse and purchase online.

OWEENIE also provides practical customer services, including order tracking, frequently asked questions, contact support, and a ticket-submission option. Its website lists return, shipping, terms and conditions, privacy, and DMCA policies, and invites visitors to subscribe to a newsletter for sales and other content. The site displays a UK phone number and offers language and currency settings.