I haven't heard about invisible trademarks, unless they are barcodes or other differences. Here, I found some information about distinguishing the true and false "Colombia", hoping to help you: the fasteners of genuine titanium jackets are relatively strong, and the fasteners are relatively thin, so the simple fasteners will not be used, and the fasteners are relatively neat and thin. The titanium series jackets are all made of genuine YKK zippers, with smooth zippers and strong texture. YKK steel seal can be seen on the side of this type of YKK zipper, and the steel seal is clear. The fake titanium series jacket uses a fake YKK zipper, which is astringent and not smooth enough, and there is basically no YKK steel seal on the side of the zipper. This kind of "titanium" LOGO is widely used in titanium series jackets, but some new models do not use this kind of button. One of the colorful embroidery of titanium LOGO. Because of the cost, the fake titanium jacket can hardly see this colorful embroidery. Titanium jackets mostly use UTX genuine fasteners, while fake ones use miscellaneous brand fasteners. YKK, the main zipper of titanium jacket, has a strong luster and is soft. The fake YKK zipper used in the fake titanium is not harmonious, bright or dull at all. The fasteners used for adjusting the tightness of titanium jacket are mostly TIFCO fasteners. The big "T" of the titanium tag is three-dimensional and has a concave-convex feeling. Generally, the documentary or counterfeit titanium tag often does not have this concave-convex feeling. OMNI－TECH's hot-pressed LOGO is relatively clear for the genuine product, not clear enough for the fake product, and has burrs. The logo of TITANIUM, the letters of titanium have a certain luster. Washing the label is also a main point to distinguish between true and false. The washing label of real titanium jacket consists of several parts, composition, washing requirements and production related information. Generally speaking, there are several components in label washing, not just one or two. The washing label is made of special material, smooth to the touch, printed on both sides, and the printed text is clear. The first page of washing label has the model number of this dress. If you are willing to open the clothes, you can see the factory number on the washing label that is wrapped in the clothes. Counterfeit label washing is relatively simple, usually just one. To sum up: 1. Look at the price. The price of titanium series jacket (2 in 1) is very low in 1 yuan. Two or three hundred dollars is a fake without looking at it. If anyone has two or three hundred dollars of genuine Colombian titanium jacket in one, it is definitely a fake. After all, a penny is worth a penny. 2. Look at the fabric. Titanium fabric will not be particularly soft, and the adhesive tape can be clearly felt. You can't tell the truth from the workmanship, because it's really the same as the thread, and it's as fine as the fake one. However, the real thing has a "loop" in the main "hard" places, and it turns twice repeatedly. Fake ones are generally not available. 3. Look at the accessories. YKK zipper, UTX fastener, TIFCO button, label washing material. These can be easily seen from the truth. 4. LOGO embroidery. The genuine LOGO embroidery is very clear, not to mention the fake one. 5, look at the details of the design, the fake is rough, really more human. Source: Outdoor Information Network Author: Peak Qingying