This insertions created for some suits, that have special pockets for elbow (like Step-M6 and similar suits). That's provide you additional protect of your elbow, that especial important if you playing in buildings.
You can cut them easily, so, they are universal and can fit any sizes and almost all suits, that have this special pocket. Due small weight and special material doesn't affect on movement. Strongly recommended for CQB.
Price for pair!
Weight: 21 gramm