Vessl's flagship product is the isoform socket, the only automatically adjusting prosthetic socket for folks with a leg amputation. Isoform reduces chaffing in the socket that often lead to blisters, helping amputees move comfortably and avoid secondary health complications. It also reduces the number of modification appointments prosthetists have, appointments for which they are not reimbursed. Vessl operates in a B2B model with prosthetists.