美国采购需求：健身包、急救包、行李袋、背包、自行车背包

I'm reaching out to express my interest in your Tactical Sling Bags, specifically in a 4-liter size for OEM opportunities. I'm keen to explore the potential for collaboration and discuss your product specifications, pricing, and customization options. It would be great to understand your production capabilities and any minimum order quantities you may have. To facilitate a more in-depth conversation, please connect with me on WeChat. My WeChat ID is NathanKies. I'm looking forward to hearing from you soon so we can dive into the details and see how we can work together effectively.