Buy a Barbour waxed canvas messenger bag if you want a bag that is BIFL and will look timeless. You can also send it out for any repairs if necessary. Best 20€
Barbour Essential Wax Messenger Bag | Farm House Tack
BARBOUR WAX LEATHER TARRAS BAG w/ Leather trim in Olive Great Gift ! | eBay
Barbour Waxed Cotton & Leather Briefcase - Saint Bernard
Barbour Essential Wax Messenger Bag in Black for Men | Lyst
BARBOUR WAX Canvas Leather Trim BRIEFCASE Olive(Fits most 15" laptops)GreatGift! | eBay
Barbour Essential Wax Messenger Bag | Farm House Tack
The 10 Best Messenger Bags (Updated for 2018) - Gear Patrol
Essential waxed canvas messenger bag Olive Barbour | L'Exception