Firm markets 'bomb-proof' backpack... to users not too concerned about protecting their arms and legs Designer says innovative bag will save lives with protection of vital organs Personal protective shield unfolds when user pulls togs It is the ultimate back-to-school present for the pessimistic parent - a rucksack that can shield the wearer from a bomb blast. But there is just one problem - while the bag protects all the vital organs, limbs are offered no such sanctuary, which could prove a deal-breaker for some prospective buyers. Despite this, designer Hila Raam, 27, who is targeting the Israeli market with what she describes is a 'ground-breaking product', believes there is a significant potential for the bag, which weighs just over five pounds. Lifesaver? A new rucksack has been designed that forms a protective shield around the wearer when they pull two togs. It protects all the vital organs with 19 layers of fabric, weighing just over five pounds The rucksack, which has been designed for children and young people, is being targeted at the Israeli market She says the bag has been designed to act as a basic personal shelter in the event of an emergency or terror strike. Wearers simply have to pull the side straps on the bag and yellow strings from the hood if they hear an air-raid siren, and lie flat on the floor. The backpack, which costs around £300, will then fully protect the brain, heart, liver and kidneys from the impact and fallout of an explosion, with 19-layer Kevlar fabric at its core. Miss Raam said: 'This bag pack is no ordinary bag - it can save lives. It is easy to use in real situation. It was designed as a bag for children and teenagers but can be used by adults as well with different design changes which are being processed. 'I wanted to protect people while they were in open spaces and couldn't find shelter in a limited time frame. 'This happens a lot - I discovered that during an attack, 60 per cent of people don't get to shelter and are forced to lie on the ground and hope they'll be safe. The bag looks just like any other rucksack from the outside but is potentially invaluable. It is costs £300 I aimed to create a product that will always be with you and is part of your daily routine, so if there is a real situation it will be ready to use. 'The main goal was that it shouldn't look like protective gear but an ordinary bag, yet be more than that. It had to be easy to use and be part of your daily life without having to think about it. 'Luckily I haven't had any personal experience of an attack, but I asked a lot of people and friends who have how they acted and felt during the attack. Government subsidy could help the protective parents to purchase this bag for their children. Furthermore it is great for travellers and journalists who visit dangerous places. The bag has a 25-litre capacity and can also be worn as a vest - thanks to a zip which disconnects the bag from the vest. Miss Raam, a design graduate, added: 'We live in a world with different realities for every country. It is amazing and sad to see the bag appeals to a wide range of people throughout the world in different uses. I chose to focus on the Israel life threats and problem because I am Israeli and this is the reality I know and live in. This bag is meant to protect and save lives, lives of all the different people around the world who need that kind of protection. Of course I hope one day that my invention will be irrelevant.