The name is derived from the Adler sewing machine on which the loops are sewn. The loops are not sewn into the seam, but onto the body of the bag. When sewing the hanging loops, a patch is placed on the loop to strengthen the bag, which ensures a higher strength of the bag. Alternatively, fabric with reinforced belts is used, on which loops are sewn without patches.
The disadvantage is the limitation of the carrying capacity of the bag (certificate for a maximum load of 1500 kg, 5:1 with sails, or 1000 kg, 6:1 without sails)