When asking your barber for a low fade, specify that you want the fade to start about half an inch above your ears and gradually blend into longer hair as it moves up. Mention that you prefer the shortest length at the bottom to be around 0.25 inches (using a #2 clipper guard). Additionally, let them know how you want the top styled, whether it’s left longer for more volume or trimmed to a specific length.
It’s helpful to bring a reference photo to ensure you and your barber are on the same page. This way, they can tailor the cut to suit your preferences and hair type.