FAQ -Frequently asked questions

Here you will find answers to common questions

iZi Flex FIX i-Size

Here you find answers to common questions about BeSafe’s newest high back booster seat, the iZi Flex FIX i-Size.

  • This depends on a country’s own traffic regulations, the majority of European countries require securing children in child car seats up to a stature height of 135 cm, yet some countries demand usage up to 150 cm or sometimes until the age of 12. Please check your country’s regulations for this.

    We at BeSafe recommend you to secure your child in a high back booster seat for as long as possible – until a stature height of 150 cm, even if not demanded by local legislation. A high back booster seat offers children important side impact protection and aids an optimal positioning of the vehicle’s lapbelt and shoulderbelt.

  • The second phase of UN r 129 contains different categories: the ‘i-Size booster seat’ category and the ‘specific vehicle booster seat’ category.

    The ‘specific vehicle booster seat’ category allows for widths above 44 cm, so that the fit in terms of height and width depends on the vehicle and should therefore always be tried out before purchase.
    Specifically for stature heights above 135 cm, the headrest of the booster seat can in some cases touch the vehicle body. This is sometimes the case with sports car models but rarely with family cars. BeSafe recommends to test-install the seat in all positions in the vehicle you intend using it in and check the installation, available space in the vehicle and position of the child to see if it is acceptable for your situation.

  • The second phase of UN R129 contains different categories: the ‘i-Size booster seat’ category and the ‘specific vehicle booster seat’ category.

    The ‘i-Size booster seat’ category ensures you that a booster seat in this category fits in all positions in a vehicle that have an i-Size marking themselves for a child’s stature height up to 135 cm. Additionally, it allows for a maximum width of 44 cm for the booster seat and requires stowable ISOfix connector arms, so that the booster seat can be installed both with and without ISOfix.

  • UN R129 is being rolled out in three different phases. The first phase introduced in 2013 targeted ISOfix installed child car seats with internal harnesses (where the child is secured with the seat’s own harness, not with the vehicle belt), resulting in baby car seats and toddler car seats approved to UN R129. The second phase became active in June 2017, targeting booster seats for children with stature heights above 100cm, in which the child is buckled up with the 3-point vehicle belt. The third phase of UN R129 is currently under development and will target belt-mounted child car seats with internal harnesses.

  • The UN regulation 129 is a set of child car seat regulations that were first introduced in 2013 and aim to make it easier and safer to buy the correct car seat for your child. The UN R129 regulation is stricter than older regulations and is also meant to make it easier for parents to find a car seat that will fit in their cars.

  • In a high back booster seat, the forces of the child are distributed to the vehicle through the vehicle belt in an impact, as the child is held by the vehicle belt. If a high back booster seat is installed with ISOfix, the ISOfix anchorages help keeping the seat itself in place in an impact but do not have to hold the child’s forces.

    In contrast, ISOfix installed child car seats with an internal harness (where the child is secured with the seat’s own harness, not with the vehicle belt) always have a weight limitation, as the forces of both the child and the seat are distributed to the vehicle through the ISOfix anchorages only.

  • In the UN R129 regulation, the classification has changed from kilograms to centimetres, since parents often know more accurately how tall their child is. This makes it easier to choose the right (and safest) seat.

  • You can use the seat’s reclining position anytime you or your child like but we advise you to put the seat into the position you intend to use before buckling up your child to avoid slack in the belt. The reclining position can be operated through the reclining handles on both sides of the seat. Do make sure to always pull the seat belt tight after buckling up your child.

  • iZi Flex FIX i-Size can be adjusted to the child’s height by using the height adjustment handles that can be found on either side of the seat. This allows adjusting the seat from any side even if the child is already seated.

  • Yes, the PAD+ is a part of the safety system of this booster seat and should always be used as an ‘integrated’ part of the BeSafe iZi Flex FIX i-Size.

  • When children are buckled up with the vehicle seat belt, they often feel that the shoulder belt is ‘uncomfortable’, leading to a risk of positioning the shoulder belt incorrectly to avoid discomfort, e.g. by placing it underneath their arm. To avoid this risk of misuse and to increase comfort, the PAD+ of the iZi Flex FIX i-Size softens the edge of the vehicle seat belt, padding it. Additionally, it also actively increases safety by acting as a cushioning bumper between the child’s chin and chest.

  • The additional side impact protection SIP+ can be placed onto the side of the iZi Flex FIX i-Size facing the vehicle door to further enhance the side impact protection, yet the iZi Flex FIX i-Size has already passed the demanding crash test criteria of the UN R129-02 regulation without the SIP+. Its main function is to reduce the distance between the seat and the vehicle door, thereby enabling an earlier contact in a side impact that leads to less movement.

  • Yes, in order to be able to facilitate several seats or people next to each other in a vehicle, the SIP bumpers of iZi Flex FIX i-Size can be detached. However, we recommend you to always keep the outer SIP bumper facing the vehicle door attached when having iZi Flex FIX i-Size installed on an outer vehicle seat position for an optimal safety performance. In addition, we recommend you to also attach the SIP+ onto the SIP bumper facing the vehicle door if there is space available for additional side impact protection.

  • The BeSafe iZi Flex FIX i-Size has no carlist, since this is not required according UN R129-02 and there are hardly any limitations to use iZi Flex FIX i-Size in vehicles.
    As mentioned in the user manual there can be a limitation in the highest position of the headrest when the seat is used in the rear vehicle seats at the side because of the low roof in some vehicles. In these situations the seat can’t be used to the total height of 150 cm. This can sometimes be the case for sporty vehicles but rarely for family cars. We recommend you to always try out a seat before purchase to see if it fits to your specific situation.
    In some vehicles it might not be possible to use the SIP+ due to lack of space at the door side of the seat, then it’s fine to use the seat without SIP+.

  • Yes, the ISOfix connector arms on the iZi Flex FIX i-Size are stowable, so that it can also be installed with the 3-point vehicle belt only. But when ISOfix anchorages are available on the vehicle seat, you can use the ISOfix connectors for keeping the booster seat in place when no child is sitting in it.

  • When installing an iZi Flex FIX i-Size on an outer vehicle seat, you can take the inner SIP bumper off in order to be able to fit several seats/people next to each other. When installing an iZi Flex FIX i-Size in the middle position in the vehicle, both SIP bumpers can be taken off if you would like to place other seats/people next to the iZi Flex FIX i-Size on both sides. When installing an iZi Flex FIX i-Size in the middle position in the vehicle but are only placing another seat/person next to it on one side, we recommend you to keep the other SIP bumper on the iZi Flex FIX i-Size.

  • The lapbelt guider is optional to use as it only indirectly impacts the child’s safety. A child who is correctly placed in the seat travels safely with or without using it. However BeSafe’s recommendation is to always use it as we always recommend to use all precautions to minimize any safety risks.

  • Yes, the lapbelt guider of the iZi Flex FIX i-Size is made of soft material and can be folded away when the child gets in and out of the seat.

  • When the child grows and changes from car seat with internal harness to a booster seat combined with the vehicle belt, the five-point belt changes to a three-point belt, and the freedom of movement becomes significantly greater. This often leads to the child moving more in the seat and therefore the risk of incorrect vehicle belt position increases, impacting the child’s safety.

    For the iZi Flex FIX i-Size, BeSafe has developed a new innovation – the lapbelt guider. The idea comes directly from the BeSafe pregnant belt. The lapbelt guider simply helps positioning the child correctly in the seat and ensures that the belt is properly positioned over the child’s pelvic bones.

    To open the lapbelt guider’s fid-lock magnet, pull the upper flap downwards. To close the lapbelt guider, simply let both ends of the fid-lock magnet snap into each other.

BeSafe recommendations

Here you find some useful tips for your car journeys.

Child car safety

Here you find answers to some general questions regarding child car safety.

  • Thick winter clothes should not be worn under the harness. In case of an impact, the textile will be compressed causing a distance between the harness and the body. This means that the harness won’t have a good grip on the child, which could be dangerous especially on forward facing seats.

  • In some cars, the Isofix brackets are fitted very deep. In such cases, it may be advantageous to hold the base at an angle of around 45 degrees as it slots in. This will provide better access to the brackets. It should be noted that Isofix brackets that have been fitted deeply may give the base an improper angle. In extreme cases, it may be better to install the seat without the base. 

  • The internal harness should be as tight as possible and no more than two fingers should fit between the child’s body and the internal harness. It is vital that the internal harness is as tight as possible, particularly with forward-facing child car seats.

  • After a rear-facing child seat has been installed, slide the front seat back so that it makes contact with the child seat, in order to prevent the child seat from striking the front seat in the event of a collision. If it is not possible to make contact between the front seat and the child seat, the minimum distance should be 25 cm.

  • A loose internal harness can be extremely dangerous, particularly with forward-facing seats. The harness must be securely tightened and a belt guard may be used to hold the harness together, where necessary.

  • ISOfix is a system for fitting child seats in cars. The system comprises two rigid metal anchor points located in the gap between the back and sitting section of the car seat. Child seats with ISOfix contain two ISOfix arms that slot into these metal anchor points. The child seat also has a third point of support, usually in the form of a support leg that rests against the car floor.

    Child seats with ISOfix are generally very easy to install, significantly minimizing the risk of incorrect use. Experience would suggest that a high proportion of traditional child seats are incorrectly installed and an incorrectly installed child seat can create a false sense of security. The ISOfix system offers a heightened level of safety as the risk of a child seat being incorrectly installed is minimal.

  • Once it has been installed, the angle of the child seat varies according to its angle and shape. It is generally advisable for the child to be sitting as upright as possible in the event of a collision (because the collision forces are then dissipated more evenly throughout the body).

    However, if the child is sitting too upright, its head will roll forwards. This problem may be resolved by installing the seat so tightly that some of the air in the padding – and thus, the improper angle/shape – is removed: Remove the locking bolt on the support leg. Place one hand on top of the seat and press firmly so that the support leg is shortened by a notch or two. Tighten with a ratchet (and anchor belts, if it is a belt-installed seat) so that the support leg is resting firmly on the floor and the seat is completely rigid. Replace the locking bolt. Start the installation from scratch, if necessary.

  • Children are considerably more soft and pliable than adults and do not experience discomfort while sitting with their legs bent. The most important thing is to protect the child’s head and neck. A child should therefore sit rear-facing for as long as possible.

UN R129 (phase 1)

Here you find answers to common questions about UN R129 and especially phase 1.

  • In i-size it is mandatory to transport the child rear facing till 15 months. So you have to purchase a rear facing child safety seat to facilitate till at least 15 months (so min. 83 cm.) stature height.

  • As long as ECE R44 04 is allowed by National legislation you can use both ECE r 44 04 and i-size products in your car. This will be at least till 2017. ECE r44 04 products with isofix do have a car list to explain in which vehicle (seat position) the child safety seat can be used.

  • No the stature height range can be defined by the child safety seat manufacturer. The range is defined by the inside dimensions of the child safety seat and the dummies which are used to test the child safety seat. The stature height limit of 105 cm. will be used a lot in practice, since this is the upper stature height which is tested with a Q3 dummy.

  • In i-size it is mandatory to transport the child rear facing till 15 months. A child safety seat has to facilitate a stature height till 83 cm. which is representative for 15 months. A child safey seat with stature height of min. 83 cm. guarantees the usage till 15 months. When a child safety seat offers only a max. stature height of 75 cm. (very normal for an infant seat), the parent has to use another rear facing child safety seat which offers a stature height till at least 83 cm.

  • No, you can use ECE r44 04 seats as long as the National legislation will allow this, which will be at least till 2017 and depending on National legislation of each country. So for many years ECE r44 04 child safety seat and i-size child safety seat will be both available and are allowed to be used (at least till 2017).

  • I-size offers a more complete and up to date set of safety criteria, which gives a better guarantee that i-size child safety seat are safe. (For example: side impact criteria, measurement of head acceleration). The safety level of ECE r44 04 child safety seat can be at the same level when these criteria (amongst them: side impact protection) have been taken into account with the design of these seats. To comply with i-size the child safety seat have to offer for example also long floor supports and special labels BeSafe child safety seat have been designed with side impact protection and to a high safety level and do offer a comparable safety level to i-size child safety seat.

  • No, it’s mandatory for i-size child safety seat only and will be communicated by the Rear facing label on all forward facing and convertible i-size child safety seat. As long as ECE r44 04 seat are allowed to use, it will not be mandatory to transport your child rear facing till 15 months.

  • As long as ECE R44 04 is allowed by National legislation you can use both ECE r 44 04 and i-size products in your car. This will be at least till 2017. ECE r44 04 products with isofix do have a car list to explain in which vehicle (seat position) the child safety seat can be used.

  • The maximum weight of child safety seat and child in i-size is 33 kg. The child safety seat will be marked with the max. weight for the child (which is max. 33 kg. – the weight of the child safety seat). The maximum weight of the child is including clothes and shoes.

  • When the vehicle seat is marked with an i-size label you can use any i-size marked child safety seat on this vehicle seat. When the vehicle seat is marked with an isofix label, you have to check the car list of the i-size child safety seat if the specific vehicle (seat position) is mentioned in this list. If yes, then you use the child safety seat. If not, consult BeSafe

  • When the vehicle seat is marked with an i-size label you can use any i-size marked child safety seat on this vehicle seat. When the vehicle seat is marked with an isofix label, you have to check the car list of the i-size child safety seat if the specific vehicle (seat position) is mentioned in this list. If yes, then you use the child safety seat. If not, consult BeSafe.