The yerucham 2.0 shirt (2 of them).
Century old, all-cotton French handkerchief material found in an attic in the countryside of France.

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Durable yet extremely breathable and lightweight. 

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Measurements - One Size 

Chest width - 24.5”
Back length - 30.75”
Shoulder to shoulder - 19.75”
Sleeve length - 25.5”