This is my final strap version for Oculus Quest2. Its derived from my Oculus Go Pro straps. Some parts are similar. Realy most comfortabe straps i have tested. Parts are printed on FDM from PET-G, but nearly any type of material is usable. I have ordered several types of strap for quest 2, but none of them were good enough. So i decided to design own version.
Im using adjustable back part of large "Supporting 2-Head-Strap" and halo frontal part is 3d printed easilly by FDM. As external headphones i have used cheap replacement parts for koss porta pro from ALI. PS. Im using this design with several different replacement straps. Latest one is clone of original oculus pro strap (with big rubber part) and it looks like best fit solution for me (all others work too).

BOM:

• printed parts (from PETG +-200g = 3$)
• koss porta pro replacement drivers (2pcs 7$ from ali)
• headgears double cable replacement (1,5$ from ali or scraped from old cheap headgear)
• Replacement oculus helo Cushion Pads (5$ from ali, or similar)
• 2x M6x20 furniture imbus + 2x m6 nylock (0,2$)
• VR Headset Head Strap Headband For Oculus Quest 2 (with large headrest 22$ from ALI)
• Replacement Headband Headset Cushion Pad For Sennheiser HD201/porta pro or similar size (0,7$)
• 2x black rubber band (0,01$, i use cut bike tubes.. )
• 2x M3x30 imbus + 2x m3 nylock + 2x m3 washer(0,02$) Overal price for mod parts is +-45$. But its much better/more comfortable then for example franken mod (htc vive 150$ sound straps). Only disadvantage is bigger size.