Zipper provides easy application without bulk in the axilla. Ideal for immobilizing midshaft humeral fractures. Extra material at shoulder for shoulder immobilization. Fabricated from 2.4mm 4% perforated Aquaplast-T material. Ships flat and must be fitted by a medical professional. Does not include padding, stockinette or straps. To size, measure circumference horizontally at axilla. Latex free. (U.S. Patent No. 6,093,161.)