Filter Sock Style Sediment and Erosion Control

Comparing Filter Sock Style Systems to the Flex MSE Vegetated Wall System

More Stable

As a gravity wall, the overall stability of filter sock style structures is strongly linked to the underlying foundation materials. Sock style applications are susceptible to differential settlement and have “single point of failure” vulnerability. 

Flex MSE units have a smaller cell diameter than filter sock systems allowing for more versatility in design. 

Flex MSE can be installed on uneven foundation surfaces. Combine that with the nearly unlimited differential settlement ability of the system and lightweight components, Flex MSE can be used effectively in a wide range of soil types.

More Reinforcement Options and Positive Mechanical connection

Flex MSE’s ability to connect with a variety of reinforcement options with a positive mechanical connection give Flex MSE a decided advantage over less stable sock style walls and allow for steeper installations and a much broader range of applications.

While both Flex MSE and filter sock style walls can be used for contoured installations, Flex MSE also allows for right-angle applications and marries well with other hard armor systems.

Better Fill Materials

Top soil and common granular material, readily available from Landscape supply stores, and in some cases in-situ materials can be used with the Flex MSE system. Flex MSE’s ease of use and the broad availability of engineered fill materials means less time spent on material selection  and handling generating savings in overall project time.


With more than 50% of the sock facing being impermeable, there can be serious challenges in vegetating these systems thoroughly versus Flex MSE.

Flex MSE has a sustainable vegetated face with normal growth cycles established on installation and cyclical vegetated face from year to year.