Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Piece of junk

Total waste of money. Second strap that would have had the female receiving end of the cargo tray strap buckles are missing. Needed it the day it arrived so I tied the straps in a knot so I could use it. After one day use the stitching came apart at the seam of one of the shoulder straps and the thin (barely cushioning) foam came out. Also there is no buckle strap at the chest to clip the shoulder straps together. Makes for a painful sternum after a few minutes use. Piece of junk! Do not waste your money!