There's nothing like maintaining high-quality leather. I bought my Occidental tool bag setup last year and I expect these to last for a big portion of my career as an electrician :
Canvas Tool Bag, Shoulder Strap Small Tool Pouch, Maintenance Linem...
Tactical Molle Pouch EDC Tool Bag Phone Pouch Shoulder Strap Pack Compact Bags | eBay
Electrician's Heavy Duty Tool Pouches Large Mouth Bags, and Tuff-Tote Carriers
WrightFits Leather Hammer Holder Tool Belt | Work Belt
Leather Tool Tote Bag, Leather Tool Bag for Men, Leather Tool Storage, Tool Bag Personalized, Tool Bag With Shoulder Strap, Custom Tool Bag - Etsy UK
Tool Bag, 26 x 8.5 x 33cm Heavy Duty Tool Bag Organiser,Wide Open Mouth Storage Bag with Adjustable Shoulder Strap, Electricians Work Pouch Fit for ...