Jackman’s Sumi BB Cap takes a classic baseball silhouette and rebuilds it through the brand’s signature obsession with yarn and machinery. The fabric starts with a dry cotton blend sourced from the US and Australia, then spun into nep yarn using intentionally imprecise carding adjustments that create natural texture and irregularity. It’s a difficult process to control - nep yarn is fragile - and weaving it demands slow, careful work on an old-fashioned rapier loom, the same style traditionally used for silk. The result is a cap with an organic, rustic surface, subtle color variation from the charcoal dye process, and a uniquely Japanese balance of softness and structure. It’s an everyday piece elevated through method, material, and the kind of production that most brands simply don’t attempt anymore. 100% Cotton Leather Closure Produced in Jackman factory in Fukui prefecture table { width: 100%; border-collapse: collapse; } th, td { border: 1px solid black; padding: 8px; text-align: center; } th { background-color: #f2f2f2; } Size Around the Head One Size 22.44-26.38" A variance of +/-.5" is within tolerance. Fit Notes: These have a one-size notation, but they probably wouldn't be the best for guys with huge heads. The leather strap allows for some adjustment which makes them fit a wider range of heads.