A layered bob is one of the most requested cuts precisely because it looks effortless in photos — but that soft, face-framing movement almost always comes from how it's styled, not just how it's cut.
The round-brush blowout technique is what builds the volume at the root and the slight inward curve at the ends that separates a "styled" bob from one that's just air-dried flat.
Dry each section completely before moving to the next one — going back over a partially dry section with the round brush is what causes frizz and undoes the smoothness from the first pass.
Save this tutorial for later — pin it to your short hair board.
Apply heat protectant and a small amount of mousse to damp, towel-dried hair, focusing product at the roots for lift.
Clip the top half of the hair up and start blow-drying the bottom section first, working in small pieces.
Wrap small sections around the round brush and follow with the dryer nozzle pointed down the hair shaft, rolling the brush under at the ends for a slight inward curve.
Release the top section and repeat, angling the brush to lift the roots away from the scalp as you dry for volume at the crown.
Once fully dry, run a flat iron or curling wand lightly over the ends for extra shape, then finish with a light-hold spray.
Skipping the root lift step during blow-drying is the most common cause — a bob with no volume built in at the crown falls flat as soon as the initial style relaxes, regardless of how the ends are curled.
A medium barrel, roughly 1.5 inches, gives enough curve to shape the ends without being too large to maneuver through shorter layers.
Yes, with a light mousse scrunched in and the ends tucked under with fingers while damp — it won't have as much volume at the root, but it holds shape reasonably well on wavy textures.