Blue Bomber - Baseball Thumb Guard
Finding Your Perfect ThumbPRO® Size
ThumbPRO® sizing is based on weight ranges, but every hand is a little different. While you can measure your thumb using a string or ribbon around the thumb halfway between the first and second knuckles (as shown in the image above), we've found that weight is generally the most reliable way to determine your ideal size.
Weight-Based Size Guide
- Small: Under 115 lbs (youth, age 7+)
- Medium: 115–200 lbs (most teens/adults)
- Large: 200+ lbs (larger adults)
Your ThumbPRO® should fit snug, not too tight—because the right fit means maximum protection and confidence at the plate. If you're in between sizes, performance players often size down for a locked-in fit, while others size up for comfort. If you play with batting gloves, consider how the ThumbPRO® will fit over them.
We Stand Behind Every Swing
We're committed to helping you feel comfortable, confident, and unstoppable at the plate. That's why we offer our Perfect Fit Guarantee with free 30-day exchanges. Not the right size? No problem. Simply use our self-serve online portal to initiate an exchange—we've made it easy because we want you focused on your game, not hassles.
When you Swing Without the Sting™, you play your best. We're here to make sure you get there. 💪⚾
▶️ WATCH: PRO SIZING TIPS FROM DALTON REEVES 👇
Check out this quick video from Pro Baseball Player Dalton Reeves of the Savannah Bananas ⚾
He shares tips on how to choose the correct ThumbPRO® size:
Have questions? We're always happy to help! Contact us here.
- Need it Fast? Choose Expedited Shipping at a Discount 📦
- ThumbPRO® USA and International Patented
Strike Fear Into Pitchers – Royal Blue “Blue Bomber”
Strike fear into pitchers with the ThumbPRO® Royal Blue “Blue Bomber,” the bold choice for hitters who want confidence at the plate. This premium royal blue thumb guard delivers championship-level protection against bat sting and hand jamming while giving players a strong, commanding look in the batter’s box. Made in the USA from shock-absorbing polymer, it fits left or right hand and stays comfortably in place. Backed by U.S. and international patents, it is trusted by pros and players at every level who demand performance.
✅ Protection
✅ Performance
✅ Comfort
Prevent Bat Sting
Protect your hand from painful jamming and vibration.
Engineered Fit
Ergonomic design stays securely in place while maximizing performance.
Unlock Your Swing
Avoid "death grip" tension for optimal bat control.
Increased Exit Velo
Testing shows up to 15% increased bat speed.
Specifications
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Medical-grade, shock-absorbing polymer
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Ambidextrous design for left or right-handed batters
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Available in three sizes: Small, Medium, Large (Youth through Adult)
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Works with batting gloves or bare-hand training
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Easy to clean — just rinse and air-dry
Trusted by over 30+ players in the MLB
Backed by U.S. and international patents. Proudly family owned. Made in the USA 🇺🇸
Every order includes a 30-day fit guarantee with easy size exchanges. If you're not satisfied, we'll make it right.
Questions? Use our chat box and we'll get back to you quickly.
Swing Without The Sting!™
Royal Blue – Blue Bomber
Royal Blue brings bold energy to the batter’s box, built for sluggers who play with confidence and command attention.
