Replying to Technica agent 110 velcro things/shinbang

hey so i got some new agent 110s this year and im getting some pretty bad shinbang. im fairly certain that its because theyre too big, so im gonna try some booster straps. but the real question is, what are the two green rubber velcro things that stick on the front and back of the liner? they seem to just get in the way and i dont know what they do. could they possibly help my shinbang problem? what should i do with them?