Gerrit and Andy, better known under the name of "Naturensöhne" (sons of nature), on their Youtube channel inspire more than 490,000 followers with their entertaining content from bushcrafting, camping, hiking and equipment testing. More than two years ago, we started working with the two Berliners on the concept of their own Naturensöhne knife. Due to their nomination for the 3rd episode of the Youtube success format 7 vs. Wild, where seven teams have to survive in the wilderness with self-selected pieces of equipment, the requirements for our joint project have become even more challenging. Since all the equipment had to be stored together in a 1 L Nalgene bottle, we had to completely rethink the dimensions of the robust outdoor knife. The result is the Naturensöhne MK. I: a special version of our Outdoor/Bushcraft success model Böker Bronco. While the full-size handle securely encloses the full tang and ensures the usual excellent hand position and grip, the blade offers exactly what is expected from the most important tool during uncompromising outdoor use in 14-day Canada: Exceptional edge retention, shock load tolerance, fracture resilience and shatter resistance. This is made possible not only by the powder metallurgical blade steel CPM 3V, but also by the appealing premium coating Hardur, which is used exclusively on high-quality cutting and punching tools. The approx. 5µm thick Hardur coating, which also includes the cutting phase, increases the service life of the blade significantly and also ensures a friction-reduced surface. As lovers of a True Scandi, the choice of blade grind was without alternative for the Sons of Nature. The advantages are obvious: the extremely sharp bevel does not require a secondary phase. Especially when batoning, the Scandi demonstrates very good cleaving properties and a high degree of stability, since the entire blade thickness is maintained over about 2/3 of the blade height. The resulting higher weight of the blade also provides more mass when chopping than a flat grind. The thermoplastic TPE is used for the handle material. This is indestructible and, in addition to a perfect hand position, ensures the desired work safety in both dry and wet conditions. The premium equipment is rounded off by a compact Kydex sheath which, thanks to the included Ulticlip, ensures that the most important tool does not fail. Completely made in the Boker Manufactory Solingen.