Great image printing, but flimsy material

I use padded envelopes to ship to my customers. I thought I’d try these out after receiving an email discount code. These plastic mailers are so flimsy I don’t trust them to ship my products safely. I either need to wrap my own products in bubble wrap or discontinue using these mailers altogether. As much as I appreciate the printing job, I really wish StickerMule offered padded mailers. My review would easily change to a 5-Star review if so.