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@ Rusty
2025-05-16 13:45:18Plain white cotton T-shirts stay undefeated They let through the most light across all wavelengths, including IR (700–1000 nm) where up to 60–90% gets through. That makes them the second-best option (after white linen) for absorbing sunlight while staying covered https://blossom.primal.net/dc9dd755ea4fceb8b5cad4e6c1a4e6e9cc62edfa30dbcee535c9e18f3a584f59.png