The short answer: same fit system, different team
If you're deciding between the Toronto Blue Jays Diamond 3930 Cap and the Buffalo Bisons Game Cap 3930, the good news is that the fit question is simple: both use the New Era 3930 flex fit design and come in the same three sizes (S/M, M/L, L/XL). The real choice comes down to which team you want to represent and how much you want to spend.
This comparison sticks to what the catalog confirms, so you can see exactly where the hats are alike and where they differ.
What each cap record confirms
- Toronto Blue Jays Diamond 3930 Cap: New Era 3930 flex fit design with stretch fit construction for a secure, comfortable feel. This is the core fit technology shared with the Bisons cap, so you can expect a similar stretch-to-fit experience.
Toronto Blue Jays Diamond 3930 Cap - Toronto Blue Jays Diamond 3930 Cap: Available in S/M, M/L, and L/XL sizes. These are the same size options as the Bisons cap, so your size choice will be consistent across both.
- Buffalo Bisons Game Cap 3930: Flex fit version of the Buffalo Bisons On Field "Home/Road" Game Cap, New Era 3930 flex fit cap. Confirms the Bisons cap uses the same 3930 flex fit platform as the Blue Jays cap.
Buffalo Bisons Game Cap 3930 - Buffalo Bisons Game Cap 3930: Officially licensed MiLB product. Both caps are officially licensed (MLB for the Blue Jays, MiLB for the Bisons), so authenticity is assured either way.
Sizing: the same three sizes, but check your fit preference
Because both caps share the 3930 flex fit design and the same S/M, M/L, and L/XL size range, you can approach sizing the same way for either. The stretch fit construction is meant to provide a secure, comfortable feel without an adjustable strap.
The catalog does not provide a numerical size chart (such as head circumference ranges) for either cap. If you already know your 3930 size from another New Era cap, that's your best reference. If not, your choice between S/M, M/L, and L/XL will depend on your head size, but without a published chart we can't give you exact measurements. When in doubt, consider ordering two sizes and returning the one that doesn't fit, or check with the store for a size chart.
Side-by-side: Blue Jays Diamond 3930 vs Bisons Game Cap 3930
- Team and league: Blue Jays: MLB (Toronto Blue Jays). Bisons: MiLB (Buffalo Bisons).
- Fit system: Both: New Era 3930 flex fit with stretch construction.
- Sizes: Both: S/M, M/L, L/XL.
- Design: Blue Jays: Diamond 3930 design (specific graphics not detailed in catalog). Bisons: On Field "Home/Road" Game Cap design.
- Price (catalog): Blue Jays: USD 23.68 (compare at USD 32.00). Bisons: USD 21.08 (compare at USD 34.00).
- Licensing: Blue Jays: officially licensed MLB product. Bisons: officially licensed MiLB product.
Which one should you choose?
Your decision really comes down to team allegiance and budget. If you're a Blue Jays fan, the Diamond 3930 gives you an officially licensed MLB cap with the same flex fit you'd get from the Bisons version. If you follow the Bisons, the Game Cap 3930 is the on-field style replica and comes in at a lower catalog price.
Both caps offer the same sizing and fit technology, so you won't sacrifice comfort by picking one over the other. The Blue Jays cap has a higher list price but a smaller discount from its comparison price, while the Bisons cap is cheaper overall and has a larger discount. That might matter if you're shopping on price.
One thing the catalog doesn't confirm is the exact visual design of the Blue Jays Diamond 3930 beyond its name—so if specific graphics or colors are important to you, check the product images before you buy.
What the catalog does not confirm
- Head circumference size chart: Neither record provides numerical measurements for S/M, M/L, or L/XL, so we can't tell you exactly what head sizes each fits.
- Fabric composition: The material blend is not listed for either cap.
- Care instructions: No washing or cleaning guidance is supplied for either cap.
- Specific design details: Beyond team logos implied by the names, the exact graphics, colors, and construction details are not described in the catalog.
