Hmmm, that's a thought, the OP could try and find the manufacturer of the boxes and ask the factory manager
All rainwear discussions in general or that do not fit into other categories.
What are you thinking, maybe the delivery driver has a fetish for smoking and rainwear
The delivery driver sees the macs hanging in the hall and engages the OP in conversation about their love of macs
Cut to the scene an hour later, the OP and delivery driver are in bed sharing a post intercourse cigarette after an intense hours shagging, maybe even a cheeky wank
What a beautiful scene