The new product features an improved structure and lightweight materials, significantly enhancing wearing comfort and fit stability. A flexible cushioning layer is introduced at key interfaces to reduce discomfort from prolonged friction, and breathable channels optimize skin comfort in hot and humid environments. Regarding the adhesive system, the skin-friendly formula ensures strong adhesion while improving skin friendliness, and its sweat and water resistance have been verified, covering a wider range of usage scenarios. To reduce odor diffusion, we have introduced a multi-layer barrier design in the bag body and sealing area, which has been tested and found to effectively improve barrier efficiency. To enhance user experience, the Velcro structure has been fine-tuned in terms of opening and closing force and guidance, making closure more intuitive and stable. Furthermore, specific tests were conducted for nighttime and active scenarios to verify the consistency of the seal under significant activity. Through multiple iterations and the collection of user feedback, we have continuously optimized the details, including edge processing, tactile feel, and appearance, striving to achieve a balance between reliability and comfort, and providing a more user-friendly option for long-term wear.