Apple may be preparing a new band for the Vision Pro that could change how the headset feels on the head. The new strap is called the Dual Knit Band in code that was found in Apple backend files. That band does not exist today on the Apple store.
The current Vision Pro ships with a Solo Knit Band and a Dual Loop Band. The Solo Knit Band is soft and comfortable. The Dual Loop Band shifts weight away from the face, but it is less cushioned. The idea of a Dual Knit Band looks like an attempt to combine the comfort of the knit material with a two-band support system.

What is changing
The name and the description in the code suggest two parts. One part sits above the head, and the other part wraps around the rear of the head. The top strap helps lift the heavier headset elements. That lift moves pressure off the face and spreads it across the skull. Apple has explored similar strap ideas before in prototype reports.
Vision Pro weight is a real factor for comfort. The headset weighs roughly 21 to 23 ounce,s depending on the estimate. That weight can feel heavy over long sessions. Users have modified bands themselves to add support at the top of the head and reported improved comfort. The Dual Knit Band may offer a factory fit that gives similar benefits.
What to expect
Apple may include the Dual Knit Band as an accessory or ship it with a refreshed Vision Pro model. Reports mention an updated chip for a refreshed headset, and Apple has already tested new strap designs. If Apple sells the band as an accessory, it could let buyers choose the fit that they prefer.

A comfortable yet supportive band may be significant to those people who wear the Vision Pro most of the time. That consists of creative activity, online meetings, education, and entertainment. Neck and face fatigue can also be minimized by means of better weight distribution. It seems that Apple is paying attention to the initial user reviews on comfort and fit.
In case you would like to be prepared, make sure to monitor news on Apple updates and accessory listings. Apple will occasionally unveil accessories and new bands just ahead of a device update. Currently, the Dual Knit Band is a code name in Apple systems. That is why it is a feasible plan and not a finished product.