1.Ergonomic Curved Fit, Secure All-Day Wear
Custom curved large heating core fits lumbar curves evenly without hot spots. Wide adjustable elastic straps suit all body shapes, and rounded edges prevent curling during daily movement for stable skin adhesion.
2.Medical-Grade Hypoallergenic Breathable Fabric
Medical low-temperature spunlace nonwoven fabric can touch skin directly. Highly breathable for 12h continuous wear, no redness or itch for sensitive skin, meeting EU medical contact standards.
3.Stable Long-Lasting Heat, Anti-Scald Formula
Tuned iron powder blend delivers mild steady warmth with no sharp temperature surges to reduce low-temperature burn risks. Up to 12 hours of consistent heat; no premature activation or pouch bulging.
