Choose your style

Fortress Hat | /ˈfôr-trəs hat/

A sculptural teardrop crown with a wide 3 5/8” brim, crafted in natural white beaver felt. Minimalist lines meet bold metal spike accents, creating a refined yet daring balance. Hand-stretched, stiffened, and finished with meticulous sanding, this piece embodies elegance with an edge.

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The Wanderer Hat | /ðə ˈwôn-dər-ər hat/

Hand-shaped from chocolate rabbit felt, this piece carries the strength of Western tradition. Its telescopic crown, subtly pinched at the front, and brim sculpted into a Western curve give it a rugged yet refined silhouette. Layers of black paint, sanded back to reveal depth and age, create a sense of history in every stroke. A hand-sewn leather band, overlaid with a bold chain, anchors the design — while the carved Buddha stone accent offers stillness at the heart of its raw power.

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Build your dream hat


Your BlueBlood hat begins with you. After you decide to create a bespoke piece, we’ll do a one-to-one design call, where you share what you’re feeling, symbols meaningful to you, and your vision. Together we’ll choose shape, material, adornment, liner, colors, and purpose — each option guided by your story.From hand-blocking to hand-painting, burning, and finishing, each hat is made in layers, with care. Your hat isn’t just crafted — it’s co-created, with your story built into every seam and detail.

Each BlueBlood by Kos creation begins with the finest rabbit or beaver felts, hand-blocked and steamed into form. The crown and brim are shaped using traditional millinery tools, then refined through sanding, stiffening, and precise finishing. Every detail — from hand-sewn bands and bindings to painted, burned, and symbolic accents — is crafted by hand, ensuring no two hats are ever alike.

This process blends time-honored craftsmanship with artistic intuition, resulting in bespoke hats that carry both structure and soul.