If it matters, I know some cis men who carry a bag. One guy uses a messenger bag, LL Bean tote (if he’s got sheet music to carry), or a beat to shit backpack. He has a really generic middle aged guy style. The other is my boss and uses a leather(?) backpack or messenger bag depending on the day. He wears office type clothes
Winter is great because I have my big coat I feel so lost in summer :( carrying a tote bag (I know it can be clocky but im gay so it’s par for the course, and straight men do it too!!!) but also men’s pants hold so much in the pockets sometimes I can get away with leaving my bag in the car