The core difference: flex fit vs snapback
The Buffalo Bisons give you two distinct cap builds: the Alternate 2 3930 Flex Cap and the Reverse Retro OTC 950 Snapback. The 3930 is a flex fit cap, meaning the sizing is built into the hat rather than adjusted with a strap. The 950 is an adjustable snapback, so you set the fit with the closure at the back. That single difference drives most of your decision, from how the hat feels on day one to how easily you can share it or fine-tune the fit.
What each hat is built on
- Buffalo Bisons Alternate 2 3930 Flex Cap: New Era 3930 flex fit cap, officially licensed MiLB hat Confirms the 3930 uses a flex fit system and carries the official MiLB license, so you know the construction style before you compare sizing.
Buffalo Bisons Alternate 2 3930 Flex Cap - Buffalo Bisons Reverse Retro OTC 950 Snapback Adjustable Cap: New Era 9Fifty Snapback adjustable cap, officially licensed MiLB hat Confirms the 950 is an adjustable snapback and officially licensed, giving you the adjustable counterpart to the 3930.
Buffalo Bisons Reverse Retro OTC 950 Snapback Adjustable Cap
Sizing and fit: what the catalog confirms
- 3930 Flex Cap sizing: The catalog lists a single size option, S/M. Because it is a flex fit cap, the hat relies on its built-in stretch rather than an adjustable strap. The supplied record does not list additional sizes, so if S/M is not your usual range, this cap may not be the right starting point.
- 950 Snapback sizing: The catalog lists a Standard size option with no additional size attributes. As a snapback, the fit is adjusted through the back closure. The supplied record does not specify a size range or adjustment length, so the exact fit range is not confirmed by the available information.
Design and team details that separate them
The 3930 Flex Cap is the flex fit version of the Buffalo Bisons Alternate 2 'Sunday Affiliation' On Field Cap. If you want a cap tied to that alternate on-field look, this is the direct match in the catalog.
The 950 Snapback is built around the Reverse Retro program. Its panel and eyelet colors are Dark Royal, the top visor and button are Red, and the undervisor is Grey. The back logo is the Bisons retro wordmark, and the design is intended to be worn by the team for select Reverse Retro Thursdays. If the retro wordmark and the Thursday alternate look are what you are after, the 950 is the one that carries those details.
Reverse Retro details on the 950
- Buffalo Bisons Reverse Retro OTC 950 Snapback Adjustable Cap: Panel + Eyelet Colors: Dark Royal; Top Visor + Button Colors: Red; Undervisor color: Grey; Back logo: Bisons retro wordmark These are the specific color and logo details that define the Reverse Retro look, so you can decide whether that scheme fits your game-day style.
- Buffalo Bisons Reverse Retro OTC 950 Snapback Adjustable Cap: Design to be worn by the Buffalo Bisons for select Reverse Retro Thursdays Ties the hat to a specific team promotion, which matters if you want the on-field Thursday look rather than a general alternate cap.
How to choose between them
- Choose the 3930 Flex Cap if...: You prefer a flex fit cap with no adjustable strap, you wear an S/M in flex fit hats, and you want the Alternate 2 'Sunday Affiliation' on-field look.
- Choose the 950 Snapback if...: You want an adjustable closure you can fine-tune, you like the Reverse Retro Dark Royal and Red scheme with the retro wordmark, or you want a hat tied to Reverse Retro Thursdays.
- If you are between sizes: The 950's snapback closure gives you adjustment, while the 3930 relies on its flex fit S/M sizing. The catalog does not confirm a size range for either beyond what is listed, so check the available size options before ordering.
What the catalog does not confirm
Neither record supplies care instructions, fabric composition, or a detailed size chart beyond the listed options. The 3930 shows only S/M, and the 950 shows only Standard with no attributes. If you need exact measurements or washing guidance, those details are not confirmed by the supplied information, so treat the fit descriptions as a starting point rather than a full sizing guarantee.
