There has been a multitude of military personnel complaining about the use of hook and loop on combat uniforms. Propel has introduced their Quiet Loop in the video below showing their stealthier version for special operations. While it won't keep the sand out, it does have a discernible difference in decibel level with the quick test shown in the video.
As explained here Quiet Loop comes in printed Multicam camouflage and will be introduced at the SHOT Show in the PenCott family of patterns as well as Orion Design Groups top secret ODTDM-2, which will also come out of the wood work at the big exhibition. We can certainly see the new loop serving a function in military uniforms, but how soon is a big question.