What to wear to Hangout Music Festival: Gulf Shores sits at 28°C (82°F) by day and 21°C (70°F) at night in May, on beach, with a moderate chance of rain. That means a light base with one warm layer you can carry, flat sandals you can rinse, with trainers for the night stages, and a bag small enough for the gate rules. The crowd leans beach, tropical and y2k, so anything that survives the day reads as right.
Men's festival dressing at Hangout Music Festival comes down to three decisions: how much you can take off when it hits 28°C (82°F), what you put back on at 21°C (70°F), and whether your shoes can take beach for 3 days.
The dominant aesthetics at Hangout Music Festival are beachwear, tropical, Y2K revival and pop. That is the visual language of the site, the stages, the merch, the crowd photos, and outfits that speak it look intentional rather than borrowed.
There is no enforced dress code. What the crowd rewards is a look that survives 3 days of beach without you having to protect it.
What people actually wear: one good layer over a light base, because the temperature halves after sunset.