Hitherto, there have been proposed garments that are intended to improve an arm raising movement involved in such as a pitching motion in a baseball game or a shooting motion in a basket ball game (e.g., Patent Documents 1 and 2).
These garments are designed to enhance the athletic ability by directly supporting arm muscles, shoulder muscles, etc., which function during raising the arms, and specifically have a low stretchable portion in which a low stretchable material is disposed to extend in the muscle fiber directions of these muscles, and utilize the restoring resilience caused at the time when the low stretchable portion has been stretched.
Patent Document 1: Japanese Patent No. 3115816
Patent Document 2: Japanese Patent Application Laid-open No. 2004-44070