Buffalo Bisons Armed Forces Cap 3930: Fit, Features and Care

Quick answer

The Buffalo Bisons Armed Forces Cap 3930 is a New Era stretch-fit cap with an officially licensed Bisons design. Choose your usual hat size for a snug, flexible feel, and hand wash it cold when it needs a refresh.

Stretch fit versus adjustable: what changes on your head

The 3930 uses a stretch-fit design rather than a strap or snapback. That means the cap holds its shape around your head without a visible adjuster at the back, which gives the Armed Forces style a cleaner, more uniform look.

The tradeoff is that you cannot fine-tune the fit on the fly. If you are between sizes or prefer a loose feel, the 3930 may feel snug at first. The stretch fabric does allow some give, but it is not the same as an adjustable closure.

When the 920 might be the better choice

If you already own a Buffalo Bisons 920 adjustable cap and like being able to loosen or tighten it, the 3930 will feel different. The 920 is the better pick for sharing a cap, growing kids, or anyone who wants a custom fit every wear.

The 3930 is the better pick when you want a set-and-forget fit and a streamlined military-style look. Neither cap is inherently better—it comes down to whether you value adjustability or a clean stretch profile.

Care that protects the shape and the logo

Military-style caps often have structured front panels and embroidery that can distort in a washing machine. Hand washing in cold water with a mild detergent is the safest way to clean the 3930 without softening the brim or fraying the stitching.

Air dry the cap on a clean towel, reshaping the crown by hand while it is damp. Avoid direct heat from a dryer or radiator, which can shrink the stretch fabric and warp the brim.

Common questions about the Armed Forces Cap 3930

How should I choose my size?

Pick the size you normally wear in New Era caps. The 3930 is stretch-fit, so it should feel snug but not tight. If you are between sizes, size up for a more relaxed feel.

Can I adjust the fit like a snapback?

No. The 3930 has no adjustable closure. It relies on stretch fabric to hold its shape, so the fit is set once you choose your size.

How is the 3930 different from the 920?

The 920 is adjustable, so you can loosen or tighten it. The 3930 is stretch-fit, so it gives a cleaner look with no strap but less on-the-fly adjustment.

Can I machine wash it?

Hand wash in cold water with mild detergent and air dry. Machine washing can distort the brim and stretch fabric, and heat drying can shrink the cap.

Product facts

• Buffalo Bisons Armed Forces Cap 3930: New Era 3930 flex fit style with stretch fit design. The stretch band replaces an adjustable strap, so the cap stays snug without hardware at the back.