The Proof Hat is a traditional beanie with graphic modern texture. The tubular double-ribbed brim flows into a motif of crisscrossing forked ribs. Channels of cartridge rib add a second layer of deep texture to create a striking unisex cap.

The pattern comes as a heavy-weight paper booklet. Booklet includes full color photos, pattern schematics, charts, and special technique explanations.

Photos courtesy of Brooklyn Tweed.