Thermoskin Clavicle Support provides Support and correct positioning for the clavicle. Hook & loop adjustable straps for easy application and adjustment. Provides support and correct positioning for the clavicle. Padded straps for patient comfort. Hook & loop adjustable straps for easy application and adjustment. Assists in fracture and weakness of the clavicle. Sizing Guide: Measure around the chest. Small 30 - 33 1/2 inches. Medium 33 1/2 - 36. Large 36 - 38 1/2. X-Large 38 1/2 - 41 inches.