We read with great interest the paper of Deerenberg et al.[1] published in the recent issue of the journal. Although being an extensive review, we think that some issues are only barely mentioned and could not help for drawing conclusions.The aim of this systematic review is stated to be the identification of the best possible technique in terms of recurrence and complications and yet no credit has been given to the double mesh technique, probably having the lowest recurrence rates described in the literature.We think that at least few papers should have been taken into account regarding this approach. Usher FC was the first to describe the double mesh technique for incisional hernia treatment in several papers between 1960 and 1971 and it was not until few decades later when other authors introduced several modifications increasing the popularity of the approach. The Moreno-Egea technique [2] is based on a double mesh bridging technique without midline closure and no releasing incisions. In the Fei's modification [3], a dual mesh is used based on the Rives-Stoppa technique, with the addition of an intraperitoneal mesh, with or without midline closure. In 2009, Carbonell Tatay published a technique based on a double mesh (sublay and onlay) used only when a combination of releasing incisions both at the levels of the external oblique and posterior rectus aponeurosis are performed. Similarly, Broker et al.[4] use a combination of a sublay (preperitoneal or retromuscular) or intraperitoneal mesh and an onlay mesh after closure of the midline. Actually the latter two techniques are pure combinations of the Ramirez' components separation technique and double mesh reinforcement. The common point among the results of these series is the absence (or the notably low rate) of recurrences. Although the quality of the follow-up in these studies could be discussed, double mesh techniques seem to be very efficient for giant incisional hernia.Since the increased interest on the combination between component separation techniques and mesh prosthesis application, double mesh approach not only keeps its importance, but it achieves even further improvement of the results in terms of recurrence. Although no former review or metaanalysis has been performed to date, some papers have found these to be the best combination for incisional hernia treatment. In a recent paper [5], the authors found 11 % of recurrences, with great variability of mesh techniques used. Interestingly, the lowest rate was found with double mesh technique and components separation (approx 9 %), compared with single mesh with components separation (approx 15 %). In another paper [6], it was found that double mesh technique and component separation technique were both independently related to fivefold decrease of recurrences.The authors of the review also mention the sandwich technique and cite five papers with a total of 131 patients when, in our opinion, double mesh techniques are far more frequently used and studied in the scientific literature and need to be a...