Do I need a bag with a tripod holder for travel?

If you travel with a tripod, several MOSISO and K&F backpacks here include dedicated tripod straps or holders, which verified buyers cite as a convenience. The MOSISO 17.3-inch backpack and the K&F lightweight pack both list tripod attachment as a feature. If you don't carry a tripod, you can save weight and bulk with a sling instead.