Chest Harness for backpack V2

I make it for my eastpack when I take my motorbike but this all must be perfect for traveling or hiking for example. Adaptable to different sizes. Version full printed or with strap.

Strap : https://fr.aliexpress.com/item/4000105634840.html?spm=a2g0o.productlist.0.0.155a76e8z4xK0M&algo_pvid=7a232009-43bf-4488-b3f9-7aeb3a2a1d2d&algo_exp_id=7a232009-43bf-4488-b3f9-7aeb3a2a1d2d-23&pdp_ext_f=%7B%22sku_id%22%3A%2210000000273314414%22%7D&pdp_pi=-1%3B1.2%3B-1%3B-1%40salePrice%3BEUR%3Bsearch-mainSearch