Tucking a towel under both armpits keeps your arms connected to your torso, forcing your chest to engine the swing.
Set-up: A towel tucked under both armpits (or the lead arm) and held there through the swing.
The protocol
How to practise it
This setup uses a thin towel folded across the chest or back and tucked high underneath both armpits.
Fold and place the towel high Fold a towel thin and tuck it high underneath both armpits across your upper chest.
Maintain light upper arm pressure Feel the pressure of your upper arms against your chest, forming a connected triangle down to your hands without gripping tightly.
Power the motion with your torso Make partial swings where your chest rotation turns the arms, keeping the towel held firmly in place throughout.
Build up from short shots Begin with small pitch shots to feel the clubface rotation before attempting slightly larger partial swings.
Common mistakes
What goes wrong
Using the drill on full swings Alex Elliott and Golf Monthly advise against full swings because restricting arm lift shortens the backswing unnaturally.
Lifting arms or scooping at impact Georgia Ball notes that lifting the arms causes the towel to fall, breaking the body-led motion.
Stalling the turn and flipping wrists Giles Gill explains that keeping the trail arm connected in front of the torso prevents stalling and flipping.
Alex Elliott and Golf Monthly advise against using this setup for full swings, as it restricts natural arm lift and restricts backswing length. It is best applied to partial wedge shots, pitches, and chips where torso connection is required.
How should the towel be positioned?
Giles Gill and SagutoGolf recommend folding the towel into a thin strip and placing it across the upper chest, tucked high into both armpits. This maintains consistent pressure against the upper arms and pecs throughout the movement.
Why does keeping a towel under the arms help?
The Lads and Peter Finch explain that locking the towel under both armpits forces the trunk to power the motion. This ensures your arms, hands, and club move together as a single unit driven by body rotation.