The Weft: The Half of Your Jeans You Never See

Flip your cuff. That pale thread is the weft, and it decides more than you think. Josh Sirlin on twill, slub, and the hidden half of denim.

Craft, Craft & Materials, denim, Fabric, fabric guide, Japan, materialsJosh SirlinAugust 3, 2026warp and weft, denim twill, right hand twill, left hand twill, slub denim, shuttle loom, selvedge denim explainedComment

Why Japanese Made Goods Are the Best in the World

It is not marketing. It is a way of thinking that treats a thing as never quite finished. Josh Sirlin on Okayama, Japanese craft, and why he builds his denim there.

denim, Craft & Materials, Fabric Guide, Heritage, Japan, Japan & CultureJosh SirlinJuly 22, 2026japanese made goods, okayama denim, kojima denim, selvedge denim, japanese craftsmanship, shuttle loomComment

Botanical Indigo: The Oldest Blue, and the Jeans I Built Around It

Almost all denim is dyed with synthetic indigo. Josh Sirlin on the plant-derived blue that came first — and the 13oz Okayama jeans built around it.

Culture, Craft & Materials, Denim, fabric guide, Japan & CultureJosh SirlinJuly 13, 2026botanical indigo, natural indigo, organic cotton denim, okayama selvedge, shuttle loom, sustainable denim, black bear brandComment

Why Japan Makes the World’s Best Denim: Inside Okayama

Okayama's Kojima is the denim capital of the world — and where we make ours. Here's why Japanese selvedge denim is the best on earth.

Japan, denimJosh SirlinJune 25, 2026Japanese denim, Okayama denim, Kojima denim, selvedge denim, shuttle loom, best denim in the world, Black Bear BrandComment