Beanie (Hats)

Knitted in the round and closed at the top, a beanie has no brim, no lining and no structure anywhere in it. It stays on through stretch alone, which puts the entire fit into the ribbed band at the bottom edge.

What the hat is actually for comes down to fiber. Merino wool keeps insulating when damp with sweat and resists smell, which suits cold walking and running. Acrylic holds color and shape cheaply but turns clammy once wet. Cashmere gives the most warmth for its weight and pills the fastest, so it belongs on short trips rather than daily wear. A cuffed beanie doubles the knit over your ears, two layers exactly where cold bites, while a slouch beanie adds two or three inches of length above the crown instead.

A beret is soft wool with no brim too, but felting locks its fibers into a flat disc that sits on the head rather than covering it, leaving your ears in the cold. A cloche is fitted just as closely but blocked in felt, which means no stretch and an exact size. A baseball cap keeps sun off your face and nothing off your ears. For deep cold with a hood pulled over the top, none of them match this.

Cold dry commutes and early runs are the natural use, along with layering under a coat hood. Anyone who loses heat quickly from the head gains real comfort for very little weight or bulk. If you get pressure headaches, avoid a tight rib band and choose a looser knit. Expect flattened hair as well, since nothing about the design avoids it.

Stretch the band and let go. It should pull back to its original circumference at once, because a band that stays wide slides up your forehead all winter. Inside the top, the decrease stitches should form a neat spiral rather than a puckered knot. Hand wash in cool water, press the water out instead of wringing, and dry it flat. Hanging a wet beanie stretches the band, and the band is the whole fit.