All three of Gouchee's sitting balls (Alfa, Frankie, and Shara) use the same anti-burst PVC exercise ball at the core, built for active sitting: engaging your core, encouraging small movement, and taking pressure off your lower back compared to a fixed office chair. The difference between them isn't the sitting experience. It's the cover.
Alfa: soft velour, everyday use
Alfa's shell is a soft polyester velour with a removable, washable cover. It's the most casual-feeling of the three and suits a home office, study nook, or a spot for light stretching and yoga between meetings.
Frankie: faux leather, office-formal
Same core, wrapped in a wipe-clean faux leather cover. If your desk setup needs to look more "office" than "living room," or you just want easier cleanup, Frankie is the swap.
Shara: OEKO-TEX corduroy, texture and certification
Shara's cover is OEKO-TEX-certified corduroy, tested free of harmful substances, so it's a reasonable pick if you're sitting on it for hours a day and care about what's actually in the fabric. It also brings a warmer, more textured look than velour or leather.
Which one to pick
If you're not sure, cover material is the only real decision here. Go Alfa for softness, Frankie for a wipe-clean office look, or Shara if fabric certification and texture matter most to you. All three come with a carry handle and are made in Canada.