Featuring Callaway's legendary Big Bertha shaping and A.I. technology, the new Callaway Big Bertha B21 Irons deliver distance and forgiveness, any way you swing it.    This is the first Big Bertha...


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Featuring Callaway's legendary Big Bertha shaping and A.I. technology, the new Callaway Big Bertha B21 Irons deliver distance and forgiveness, any way you swing it.   

This is the first Big Bertha Iron designed with A.I. technology, and when combined with Face Cup technology, Callaway has created an iron that produces explosive ball speed and spin robustness off every club in the set. 

Also new to the B21 Irons is a Visible Tungsten Energy Core, which deepens the center of gravity, making them incredibly easy to launch.  Between the core and face you'll find urethane microspheres, which are strategically designed to absorb unwanted vibrations without reducing ball speed. 

When you add everything up, Callaway has crafted an iron with incredible ball speed and forgiveness, all wrapped in attractive, confidence inspiring, iconic shape.

Callaway Big Bertha B21 Irons Feature:

  • High ball speeds and increased spin robustness across the face from A.I. Flash Face Cup technology
  • Ball speeds are further enhanced by 360 Face Cup which flexes and releases at impact
  • Legendary shaping with noticeably wider soles and more offset for lower spin and a straighter flight
  • Visible Tungsten Energy Core deepens CG to produce a higher, easier launch
  • Patented urethane microspheres absorb unwanted vibration for exceptional feel
  • Stock Shafts:  KBS MAX CT80 Steel • Callaway RCH 65 Graphite
  • Stock Grip:  Golf Pride Tour Velvet 360 Soft
  • Authorized Callaway Retailer
size chest(in.) waist(in.) hips(in.)
XS 34-36 27-29 34.5-36.5
S 36-38 29-31 36.5-38.5
M 38-40 31-33 38.5-40.5
L 40-42 33-36 40.5-43.5
XL 42-45 36-40 43.5-47.5
XXL 45-48 40-44 47.5-51.5

Shipment Tracking

Email notifications will be sent out upon your order leaving our facility (generally around 5 pm CST). This info is emailed to the address provided on the order, so be sure to provide us with a valid email address. Please wait 1 business day after the order is placed to contact us if you have not received a UPS tracking notification. Drop-Ship items and items coming directly from the manufacturer may not have tracking information available--please contact customer service for additional information. In the case your item is out-of-stock, back-ordered, or a drop-ship item, you will be notified by our customer service team within 1 business day.

Curbside Pickup

Curbside pickup is now available at 5 Under Golf Center in Beaumont, TX. You can select curbside pickup upon checkout as an option. Your order confirmation will include the curbside details after order is placed. Please allow 2-4 business hours for our team to prepare your order for pickup. You will be emailed when it's available for pickup at the chosen store location.

Curbside pickup is available from 9-5pm daily. Orders placed after 3pm will not be available for pickup until the following day.

Upon arrival, you will be required to verify your identity for curbside orders along with the payment method used on the order. Please have this info ready when you arrive.

Expedited Shipping

We offer UPS Next Day Air, 2nd Day Air, and 3 Day Select services on most orders. These rates vary based on the dimensional weight of the items in your cart and the ship-to location. We try to offer the lowest shipping prices on all expedited services to get your order to you when you need it most.

Note: Remember that the day the item(s) ship is NOT included in the transit time to you. Please contact us if you are unsure of when your product will arrive.

PO Box/Military (APO, DPO, AE, etc.) Shipments

We support our military men and women locally and worldwide. We are able to ship to military (APO) addresses via USPS shipping ONLY. Upon checkout, our system will automatically provide you with the available shipping methods in order for us to get you your package. If you choose, we can also have your order shipped to a family member. Thank you for your service!

AK and HI Shipping

Shipping to AK and HI may take 7-10 business days to arrive and are not included in our shipping promotions at this time. We do still pass on our best available shipping prices onto you.