Pull-Up Grip Sizing Guide
A grip that is too small can reduce palm coverage, pull aggressively against your hand, and make every kip feel like a fight. A grip that is too large can bunch, shift, and turn a clean set of toes-to-bar into a battle against your own gear.
At RBST GEAR CO., we do not size our grips by wrist circumference. We measure from the edge of your wrist to the base of your middle finger. This measurement helps determine the correct palm length for protection, dowel formation, and a predictable connection to the bar.
How to Measure for RBST Pull-Up Grips
The right grip size is not about making your hand feel wrapped as tightly as possible. It is about having enough functional material to cover the high-friction part of your palm while still keeping your connection to the bar controlled.
RBST sizing is based on the length of the working portion of your hand—not the circumference of your wrist and not the full length of your fingers.
Follow These Steps
- Open your hand naturally with your palm facing upward.
- Locate the crease or edge where your wrist meets your palm.
- Measure in a straight line to the base of your middle finger.
- Do not measure to the tip of your middle finger.
- Compare your result to the RBST size chart.
- If your measurement falls between sizes, choose the next size up.
RBST Size Chart
| Size | Hand Measurement |
|---|---|
| M | 3" to 3½" |
| L | 3½" to 4" |
| XL | 4" to 4¾" |
| XXL | 4¾" and above |
Why RBST Measures Palm Length
Some grip brands use wrist circumference, glove size, or total hand length. RBST uses the distance from the wrist edge to the base of the middle finger because that measurement helps determine how much material sits across the working area of your palm.
During pull-ups, chest-to-bar, toes-to-bar, and bar muscle-ups, the palm section is the part of the grip that absorbs friction and helps create your connection to the bar. If that section is too short, your palm may remain exposed. If it is too long, the material may become harder to control.
Better Palm Coverage
The correct length helps protect the high-friction area near the base of your fingers.
More Controlled Dowel
Proper sizing gives you enough material to create a useful fold without excessive bulk.
Predictable Bar Contact
The grip is easier to control when the palm panel matches the functional length of your hand.
Why We Recommend Sizing Up
If your measurement falls directly between two sizes, RBST recommends choosing the next size up. Do not automatically size down because you think a smaller grip will feel tighter or more competitive.
A slightly longer grip usually gives you more usable palm coverage and more room to create a dowel. A grip that is too short may pull upward, expose the base of the palm, and make the wrist connection feel more aggressive under tension.
Sizing Up Can Help With
- Better coverage of the high-friction palm area
- More material for a controlled dowel
- Improved comfort during high-volume gymnastics
- Less pulling against the wrist during kipping
- A more natural feel when hanging under tension
Sizing Down Can Cause
- Insufficient palm coverage
- Difficulty forming a dowel
- Increased friction near the base of the fingers
- More pressure against the wrist
- A restrictive feeling during long sets
What a Proper RBST Grip Fit Should Feel Like
A properly sized grip should feel secure without trapping your wrist or creating excessive material inside your hand. When your hand is open, the palm panel should lay naturally. When you close your hand around the bar, the material should create the amount of fold or dowel you prefer without pulling the wrist strap upward.
The right size should allow you to flex and extend your wrist, rotate your hand, hang from the bar, and move through a kip without constantly adjusting the grip.
- The palm panel covers the high-friction area of your hand.
- The grip does not pull aggressively into the wrist crease.
- You can create a natural dowel if that is your preferred setup.
- The material stays controlled during kipping and swinging.
- The wrist strap stays secure without cutting off circulation.
- The grip becomes more stable when you hang under tension.
There is a difference between secure and restrictive. Secure means the grip stays planted through a long set. Restrictive means your wrist feels trapped, your hand starts tingling, or you have to loosen the strap between rounds.
Signs Your Grips Are the Wrong Size
Signs Your Grips Are Too Small
- The palm panel ends too low and leaves the base of your fingers exposed.
- You cannot create enough material for a useful dowel.
- The grip pulls upward into your wrist when you hang.
- The wrist strap feels overly tight even when properly adjusted.
- You constantly pull the grip back into position.
- Your palm takes more friction than expected during kipping movements.
A grip that is too small may feel acceptable during a few strict pull-ups. The problem often becomes obvious only after the workout gets faster, your hands get sweaty, and the volume starts building.
Signs Your Grips Are Too Large
- The material bunches excessively inside your palm.
- The grip twists or shifts during dynamic movements.
- You struggle to control the fold around the bar.
- The material feels bulky during muscle-up transitions.
- The palm panel creates new hot spots instead of reducing friction.
- You spend too much time repositioning the grip between sets.
Do not confuse extra material with extra protection. Protection comes from having the right amount of material sitting in the correct place and remaining controlled under load.
Size Your Grips for Real Bar Work
Do not judge the fit only while standing in your garage or at the edge of the rig. Dynamic gymnastics movements place far more tension on the grip than simply wearing it with an open hand.
Pull-Ups and Chest-to-Bar
You need enough material to reduce sliding as your body moves between the arch and hollow positions.
Toes-to-Bar
The grip must stay controlled while your hands absorb repeated swings and changes in tension.
Bar Muscle-Ups
The grip should remain predictable through the turnover without catching, bunching, or rotating.
After measuring, put the grips on and test a controlled hang. Then perform a few kip swings. The grip should feel more stable under tension—not less.
Fingerless Grips and Dowel Setup
Both RBST Iron Claw™ and Iron X™ are fingerless grips. Fingerless grips rely on the wrist strap, palm shape, and correct hand measurement rather than finger holes to hold the palm panel in place.
This gives athletes more freedom during transitions and removes the finger-hole pressure that some athletes experience with traditional grips. It also makes correct sizing especially important.
Some athletes prefer to use the grip flat against the bar. Others create a fold of material, often called a dowel, to reduce friction and create a more secure feel. Neither setup is automatically better. The right setup depends on the grip material, the bar surface, your hand condition, and your preferred style of gymnastics.
If creating a dowel pulls the wrist strap aggressively upward or leaves your palm exposed, the grip may be too short. If the dowel becomes a large uncontrolled wad of material, the grip may be longer than you need or may need to be repositioned.
Iron Claw™ vs. Iron X™
Iron Claw™ and Iron X™ use the same RBST measurement method. Measure from the edge of your wrist to the base of your middle finger, use the RBST size chart, and choose the next size up if you fall between sizes.
Iron Claw™ Pull-Up Grips
Iron Claw™ is built for athletes who want confidence, comfort, and dependable performance across daily functional-fitness training.
- Silicone gripping surface
- Reinforced backing
- Fingerless design
- Excellent for beginners and intermediate athletes
- Great for singles, strength work, and building consistency
Iron X™ Pull-Up Grips
Iron X™ is built for experienced athletes and competitors chasing aggressive bar contact, high-volume gymnastics, and longer unbroken sets.
- Natural rubber gripping surface
- Kevlar-reinforced backing
- Ultra-thin construction
- Highly aggressive bar connection
- Built for volume, competition, and unbroken sets
Break-In Changes the Feel—Not the Size
New grips may feel firmer during the first few sessions. The material can soften and begin to conform to your preferred bar position, but break-in will not correct a fundamentally wrong size.
A grip that is too short on day one will still be too short after ten workouts. A grip with excessive uncontrolled material will not automatically become the perfect length after repeated use.
Break in new grips during moderate bar work before using them in a high-volume competition workout. Use those early sessions to determine where the wrist strap sits, how much dowel you prefer, and whether the palm panel remains controlled once you begin to sweat.
- Allow the grips to dry fully after training.
- Keep the wrist closure clear of excess chalk and debris.
- Do not store wet grips inside a sealed gym bag.
- Inspect the palm surface, backing, and wrist connection regularly.
- Replace grips when the material or closure no longer performs securely.
Common RBST Grip Sizing Mistakes
Measuring Incorrectly
- Measuring around the wrist
- Measuring from the forearm
- Measuring to the tip of the middle finger
- Using glove size as your grip size
- Guessing based on another brand
Choosing Incorrectly
- Sizing down because tighter feels more competitive
- Assuming more material always means more protection
- Ignoring the size-up recommendation between sizes
- Testing the fit only while standing
- Wearing the strap directly on a painful wrist-bone position
The best size is not the smallest size you can force onto your hand. It is the size that allows you to hang, kip, swing, and turn over with confidence while protecting the area of your palm that takes the most friction.
Frequently Asked Questions
How do I measure my hand for RBST pull-up grips?
Open your hand with your palm facing upward. Measure in a straight line from the edge or crease of your wrist to the base of your middle finger. Do not measure to the fingertip.
Does RBST measure grip size by wrist circumference?
No. RBST grips are sized using the distance from the edge of the wrist to the base of the middle finger. This measurement helps determine the correct functional length of the palm panel.
What is the RBST pull-up grip size chart?
Medium fits measurements from 3 inches to 3½ inches. Large fits 3½ inches to 4 inches. XL fits 4 inches to 4¾ inches. XXL fits measurements of 4¾ inches and above.
What should I do if I am between two sizes?
Choose the next size up. A slightly longer grip generally provides better palm coverage and gives you enough functional material to create a controlled dowel.
Why should I not size down?
Sizing down can leave the high-friction area of your palm exposed, reduce the amount of material available for a dowel, and cause the grip to pull aggressively against your wrist during kipping.
Can I use my grip size from another brand?
It is better to measure again. Sizing systems vary between brands, so a Large from another company may not match an RBST Large. Always use the RBST measurement method and size chart.
Do Iron Claw™ and Iron X™ use the same sizing method?
Yes. Both Iron Claw™ and Iron X™ are sized by measuring from the edge of the wrist to the base of the middle finger. The materials and performance characteristics differ, but the measurement process is the same.
How do I know if my grips are too small?
They may be too small if the palm panel leaves the base of your fingers exposed, you cannot form a useful dowel, or the grip pulls upward into your wrist when you hang from the bar.
How do I know if my grips are too large?
They may be too large if the material bunches excessively, twists during kipping, or creates a bulky, uncontrolled fold around the bar.
Should the grip cover my entire palm?
The grip should cover the high-friction working area of the palm and provide enough usable length for your preferred setup. It does not need to create an excessive amount of material inside your hand.
Does grip size affect dowel formation?
Yes. A grip that is too short may not provide enough material to create a dowel. A grip that is excessively long may create a fold that is harder to control.
Can I create a dowel with fingerless grips?
Yes. Fingerless grips can be used flat or with a fold around the bar. Correct sizing gives you enough material to create a natural dowel without relying on finger holes.
Should beginners order a smaller grip?
No. Experience level does not determine grip size. Beginners and advanced athletes should both measure using the same RBST method and follow the same size chart.
Will my grips stretch enough to fix a size that is too small?
No. The materials may soften with use, but the functional length will not change enough to correct an incorrect size. Start with the proper measurement.
Should I test the grip while hanging from a bar?
Yes. After checking the fit with an open hand, test a controlled hang and a few kip swings. The grip should become more stable under tension and should not pull painfully into the wrist.
Are RBST grips suitable for pull-ups and toes-to-bar?
Yes. RBST grips are designed for movements including pull-ups, chest-to-bar, toes-to-bar, bar muscle-ups, ring muscle-ups, and other high-volume functional-fitness gymnastics.
Which grip is better for beginners?
Iron Claw™ is generally the stronger starting option for beginners and intermediate athletes. It offers a dependable silicone surface, reinforced construction, and a confidence-focused feel for daily training.
Which grip is better for high-volume competition workouts?
Iron X™ is designed for experienced athletes seeking an ultra-thin, aggressive connection for high-volume gymnastics, longer unbroken sets, and competition use.
Can I exchange my grips if I order the wrong size?
Unused grips in new condition may qualify for an exchange under the current RBST return and exchange policy. Measure carefully before use and review the policy requirements before returning the product.
Measure First. Then Earn the Reps.
Your grip size should disappear from your mind once the clock starts. Measure from the edge of your wrist to the base of your middle finger, choose the correct RBST size, and size up if you fall between two options. When the bar gets slick and your forearms start talking, the right fit gives you one less reason to drop.