1. Selection of reflective materials: There are many types of reflective materials, such as glass beads, microprisms, etc., and the price and performance of each material are different. High quality reflective materials usually cost more, but can provide better reflective effect and durability.

2, the area and number of reflective strips: the larger the area covered by reflective strips, the more materials used, and the higher the cost. Similarly, the greater the number of reflective strips used on clothing, the cost increases accordingly.

3, design complexity: if the design of the reflective strip is very complex, such as the need for specific shapes, patterns or color matches, it may increase the difficulty of design and production, thereby increasing the cost.

4, production efficiency: Large-scale production of clothing can reduce the cost of each product through economies of scale, on the contrary, small batch or customized production may lead to higher unit costs.

5. Brand and quality requirements: Well-known brands often have higher requirements for product quality, which may include the use of higher quality reflective materials and more stringent production standards, which can lead to higher costs.

6, Certification and standards: Certain outdoor clothing may be required to meet specific safety or performance standards, such as EN ISO20471 (High visibility clothing), etc., and these certification processes may increase costs.

Overall, the cost of designing reflective strips in outdoor clothing can be affected by a variety of factors, and the cost can vary greatly from low-cost basic reflective strips to high-end custom reflective systems. Manufacturers often balance cost and performance based on the needs and budget of the target market.