the present disclosure generally relates to a shock absorption film for use with a mobile computing device . the shock absorption film includes , for example , a pet base layer ; a tpu - based layer comprising a thermoplastic polyurethane material ; a release liner ; a glue layer interposed between the base layer and the tpu layer ; and a silicone - based adhesive layer interposed between the tpu layer and the release liner , the silicone - based adhesive layer contacting the tpu layer without an intervening layer between the silicone adhesive layer and the tpu layer .