BE CAREFUL NOT TO CONFUSE WATERPROOFING AND WATER-REPELLENCY
We have seen that waterproofing represents the product's ability to resist the penetration of rain.
On the contrary, water-repellency is a fabric's ability to let water slide over its surface without seeping in. The water-repellent treatment is a treatment via coating which can be added to certain products: it can either be added to a jacket with a waterproof layer to improve it, or it can be added to a product which is not essentially waterproof. In the second case, it guarantees a temporary solution if you are caught out in the rain.
These products, such as the X-light padded jacket, are generally designed for a different function such as heat provision, and their water-repellency is just a "bonus", as they are not designed to protect you from the rain while hiking. A jacket which is only water repellent (and not waterproof) is only designed to ensure minimal protection, and it will be suitable for a "makeshift" use, so the best practice is check the waterproof rating on the label before you buy.
In the event of rain, consider putting on a 3rd waterproof layer. Owing to wear and tear, your jacket may lose its water-repellent property, so check out our recommendations on restoring it.