They’re heavy duty. If you’re using it every day in bad weather, then no, they won’t be bifl, but they will last reasonably well. Most Barbour stuff isn’t UK made any more, but there are loads of 50yo bags that the shooting & fishing community use that are in fine condition. Might be worth looking at specialists who make the bags themselves, rather than brands who outsource it, such as Chapman bags in Carlisle, UK, or someone closer to you in the Netherlands, rather than a brand that outsources to far flung countries.