Low-profile folding chairs are a summer must-have. I learned this the hard way after watching an outdoor screening at LACMA without one — my neck paid for it the next day. Low-profile folding chairs have great features. With their short legs, they don't impede the view of people behind you, and don't make it awkward socializing with fellow picnickers sitting on the ground without chairs. They're also very lightweight and small space friendly when not in use.
Perfect for the beach, barbeques and outdoor events, they're available only seasonally in many places, so now's your last chance to get them at discounted prices.
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(Images: As credited above.)