OS1 FS4 Black Quarter Crew

FS4 (Low & High) The FS4™ PF sock, our first sock with patented FS6® technology, supports foot health and enhances performance. Designed for running and sports, it helps prevent Plantar Fasciitis symptoms with targeted compression through Compression Zone Technology®. This technology supports the foot and prevents injuries. The sock features soft, moisture-wicking fabric with anti-odor treatment and strategically placed padding, strengthening the foot structure and protecting against Plantar Fasciitis and overuse injuries. FS4™ 足底筋膜襪是我們首款採用獲獎專利FS6®技術的襪子，專為促進足部健康及提升運動表現而設計。適合跑步及運動時穿著，有助預防足底筋膜炎症狀，通過Compression Zone Technology®提供精準的針對性壓縮，支持足部結構並預防受傷。襪子採用柔軟、吸濕排汗的面料，具抗菌防臭功能，並在適當位置加入緩衝墊，強化足部結構，防止足底筋膜炎及過度使用傷害。