

CastleFlexx Heat
CastleFlexx Heat is the world's first heated stretch device with a premium LG Lithium rechargeable battery.
Heat raises tissue temperature to boost blood flow, relax muscles, and reduce stiffness.
Targets plantar fasciitis, ACL/knee recovery, tight calves, and tennis elbow.
Features contoured heel placement for better achilles support and larger handles for easier grip.
Heat activates in under 45 seconds by holding the power button. Auto-shuts off after 30 minutes.
HSA/FSA eligible
Buy this with your HSA/FSA.
Look for our sticker on eligible items!
Learn how to pay with HSA/FSAFirst heated stretch device
Targets plantar fasciitis, knee recovery, tight calves, and tennis elbow
Warms muscles during stretching
Heat activates in under 45 seconds, auto-shuts off in 30 minutes

CastleFlexx
A smarter way to stretch and strengthen.




