I ordered it as an alternative to compare with the MCDU combat shirt from Helikon, and from the very first impression I have to say that Vanguard comes out better in terms of quality. The same goes for the material and how it feels to wear; it seems more breathable than the MCDU. Unfortunately, I do not yet have that much experience with Vanguard in combination with wearing a vest and other gear. I only have one comment here that surprised me a little, and that is the colour of the functional part. I have no issue with the RAL colour on the sleeves and collar; that is standard and the colour matches. However, on the functional part on the chest and stomach, the colour is noticeably lighter than in the promotional photos, almost sandy. It is not something that particularly bothers me, but a darker shade, as presented by the manufacturer, would look better and more understated. To illustrate, I am also attaching a photo in which the aforementioned Vanguard shirt is on the right-hand side and the MCDU trousers from Helikon are on the left-hand side, specifically the elastic part in the waist/back area. In my view, it would be much nicer if the functional part of the Vanguard shirt were also in a shade closer to RAL rather than this sandy colour. For me, the price-to-performance ratio is a really solid 4, maybe 4.5, but the appropriate price is around 2000; above that, you are already paying mainly for brands such as UFPRO and the like. After all, it is a combat shirt that is not entirely universal and is, in its own way, quite a consumable item. Size L is just right for a height of 197 cm, although everyone has different arm lengths, so I mention that only as a rough guide. I think the sizing for shirts and upper garments in general is identical to Helikon.