Magnetic quick-release
Strong hold under load, one-handed release when you need out fast — no fumbling with buckles mid-session.
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The strap
FastClasp™ Strap System
A dual-purpose belt and carry strap with a magnetic quick-release buckle — built for L-basing, not fumbling.
Dual-purpose design
Secures your L-basing position during practice, then converts into a carry strap for getting your AcroBack from the car to the mat.
Metal D-ring fasteners
Durable connection points built to hold up to repeated, real training use, not occasional light duty.
FastClasp™ Strap System ships as part of an AcroBack kit, backed by Beyond The Mat's 2-year warranty at no extra charge. See warranty details →
The FastClasp Strap is the waist strap built for L-basing. On The AcroBack Go and Big Poppa, it keeps the support attached to your body during practice with a magnetic quick-release buckle. Check the buckle and fit before use.
Metal D-ring fasteners give it the durability to hold up to repeated real training use, not occasional light duty. Do not carry or lift The AcroBack Go or Big Poppa by the strap. Release the buckle only once you and your flyer are safely out of the pose. Hold the product itself when moving it, or use a suitable bag.
Every AcroBack kit includes a FastClasp Strap. This page is for replacements and component context — if yours needs swapping out, shop a replacement strap directly. Want to see how it works with the rest of the system? Check out the AcroBack Support Core and the Performance Cover.
FAQ
Answers before you buy.
Is this the strap that comes with my AcroBack, or a replacement?
Every AcroBack kit already includes one FastClasp strap. This page is for buying a replacement or spare via The AcroBack FastClasp Strap.
Regular or Wide?
Match the strap to your AcroBack size — a Regular strap for a Regular AcroBack, a Wide strap for a Wide AcroBack.
How does the magnetic buckle work?
The FastClasp magnetic buckle is a quick-release, one-handed design that holds firm under load during L-basing, then releases fast the moment you need out.
Part of the system
Three systems. One support pillow.
See the whole system