Portable Neck Fan Rechargeable - [with LED Display] 5 Speeds, 5000 mAh Battery Operated Wearable Personal Cooling Bladeless Fan for Outdoor Travel, Gifts for Men Women Kids,Gray

Aside from the aforementioned ideas; One year during our peak giveaway days, I bought our drivers these neck fans they were so annoyed at first but when the Chicagoland heat wave hit, they were all very grateful.