The Italians call this cloth fresco, fresh cotton, and the name is accurate: a crisp, dry-handed cotton knit that sits against the skin without warmth. Think of the garment as the missing step between a T-shirt and a sweater. Crew neck, short sleeves, ribbed trims at the collar, cuffs, and hem, and enough structure to look composed on its own.
It solves the specific problem of summer evenings on a patio: a tee looks too casual, a sweater is too warm, and this is exactly the weight in between. Works over a shirt collar too, the way a long-sleeve crew would in October.
Regular fit, true to size.