Gaming Controller Boxes.

By making sure nothing ever presses on them — and that is a specific insert design requirement rather than a general cushioning one.

Thumbsticks and triggers stand proud of the controller body. Being the highest points, they contact first with anything that presses down on the product. They are also the most delicate parts, mounted on precision mechanisms rather than being solid plastic. Impact on a stick can cause drift, which is the most commonly reported controller fault and generates returns long after purchase.

The rule is to support the controller on its grips and underside, with clearance around the entire top surface. Nothing rests on the sticks — not the insert, not the lid, and not documentation packed above the product.

A moulded pulp cradle is usually the answer, because a controller is asymmetric with compound curves and flat board inserts hold it at too few points. Combined with the unit's weight, too little retention lets it shift in transit, and then the sticks take the load anyway.