- Kevin O'Leary
- Daniel Lubetzky
- Kendra Scott
- Rashaun Williams
Get the 9 Strap
Full Hide is the shark-approved starter. Legal in game at every level.
THE PATENTED TECHNOLOGY TRUSTED BY 75,000+ HITTERS WITH LESS THAN A 1% RETURN RATE.
Built to hit hard. Built to stay healthy.
Faster bat speed
Hands cinched together lowers the moment of inertia. Barrel whips through the zone with more speed and higher exit velo.
Ends rollovers
Locks hands palm-up/palm-down. Smaller circle, faster barrel, straighter bat path. More balls squared up, more barrels.
Prevents injury
Keeps both hands connected through the full swing, reducing strain on the shoulder, elbow, and wrist. Cuts bat-to-catcher distance by up to 30 inches.
POWER.BALANCE.CONTROL.
STAY CONNECTED
See what a board-certified sports medicine doctor has to say about 9 Strap Technology.
Watch Medical Opinion →75,000+ PLAYERS. LESS THAN 1% RETURN RATE.
What hitters are saying.
★★★★★"Ended the rollover swing my kid was fighting all season. Two weeks in, we're seeing hard line drives to the opposite field."
— Marcus D., travel ball parent
★★★★★"The barrel feels lighter. My swing path is tighter. First tournament with it and I hit two doubles."
— Jordan R., HS varsity
★★★★★"I coach 12U travel. Every hitter I've put it on is squaring up more balls within a week. It just works."
— Coach Alan T.
★★★★★"Legal in game and I actually feel the connection. Straighter bat path, less swing-and-miss. Worth every dollar."
— Sam P., adult rec league
Pick your 9 Strap.
Full Hide is what the sharks bet on. Legal in game at every level. Free shipping over $100.
Free shipping over $100 · 30-day money-back
Common questions.
Is 9 Strap legal to use in games?
Yes — at every level. MLB, MiLB, D1/SEC (including Florida State), high school, travel, Little League, and tee ball. It's rules-compliant everywhere, which is why it's the only patented swing tool players actually wear in game, not just in the cage.
What does it actually do to my swing?
It locks both hands together through the swing. Result: straighter bat path, smaller circle, faster barrel, fewer rollovers, and less strain on the shoulder/elbow/wrist. Most hitters feel the difference in the first cage session.
How long until I see results?
Most hitters feel the difference in their first cage session — the swing feels more connected and the barrel comes through faster. Muscle memory locks in over 2–3 weeks of consistent use. Wear it in the cage, in BP, and in game to accelerate the change.
My kid plays youth baseball or softball — will it help them?
Yes. 9 Strap is used from tee ball through MLB — same tool, same mechanic, just different intensity. It scales with the player. Most parents see rollovers disappear and cleaner contact within the first week or two.
What if it doesn't work for us?
Every order is backed by our 30-day money-back guarantee. If it's not right for you, return it — no questions asked. Free US shipping on orders over $100.
