Britax Kidfix i-Size 3.5 Years - 12 Years Approx Height 100 - 150 cm i-SIZE ISOFIX Highback Booster Car Seat - Cosmos Black

(5.0)

5 ★4
4 ★10
3 ★1
2 ★1
1 ★0

Read 4 reviews

4 reviews

Was £254^.99

Now £229^.99

Save £25^.00

FREE standard delivery and returns
Find out more about Click & Collect

Delivery Options

Click & Collect:

Orders will be delivered to one of 1000's of pick-up points. Selected lines only, determined by size, weight or whether delivered direct from one of our suppliers.

Standard Delivery: FREE - Expected delivery within 3-5 days.
Next Day Delivery*: £3.99 - Expected delivery the next working day.

Home Delivery:

Standard Delivery: FREE - Expected delivery within 3-5 days.
Next Day Delivery*: £5.99 - Expected deliverythe next working day.
Nominated Day Delivery*: £5.99 - Book delivery up to 10 days in advance.

Delivery dates and charges will be calculated at checkout based on your order time and selection.

All deliveries are made Monday to Saturday, between 7am and 9pm, excluding bank holidays.

*Available for selected items.

Returns:

Returns are free under our 28 day approval guarantee. You can arrange a return through My Account.

View product information | View size guide

Size guide
Measuring guide

Child & Baby Size Guide

Measurements are in cm

Babywear (0-1)

Age
New Born
0-3 mths
3-6 mths
6-9 mths
9-12 mths
12-18 mths
18-24 mths

Height
56
62
68
74
80
86
92

Weight
3.5kg
5.5kg
8kg
9kg
10kg
11kg
12.5kg

Toddlers (1-7)

Age
12-18
18-24
2-3
3-4
4-5
5-6
6-7

Height
80-86
86-92
92-98
98-104
104-110
110-116
116-122

Chest
51
52
53.5
55
57
59
61

Waist
47
48
51
52
53.5
54.5
55.5

Inside Leg
35.5
38
42.5
45.5
49
52.5
56

Girls (5 to 16)

Age (yrs)
5
6
7
8
9
10
11
12
13
14
15
16

Height
110
116
122
128
134
140
146
152
158
164
165
166

Chest
58
60.5
63
65
68
71.5
74.5
78
81
85
88
91

Waist
55
56
57
58
60
62
64
65.5
67.5
69
72
75

Hips
62
64
66
70
73.5
77
80.5
84
87
90
93
96

Inside Leg
50
52
56
60
63
66
69
71.5
74.5
77.5
78
78.5

Boys (5-16 Years)

Age (yrs)
5
6
7
8
9
10
11
12
13
14
15
16

Height
110
116
122
128
134
140
146
152
158
164
170
176

Chest
58
60.5
63
64
67
71
74.5
78
82
86
88
91.5

Waist
55
56
57
59
60
63.5
65.5
68
71.5
75
77.5
80

Hips
62
64
66
58
71
74
77.5
81
85
89
91.5
94

Inside Leg
50
52
56
59
62
65
68
70.5
73.5
76
79
82

Girls Schoolwear

Age (yrs)
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16

Height
98-104
104-110
110-116
116-122
122-128
128-134
134-140
140-146
146-152
152-158
158-164
164-165
165-166

Chest
54-56
56-58
58-60.5
60.5-63
63-65
65-68
68-71.5
71.5-74.5
74.5-78
78-81
81-85
85-88
88-91

Waist
52.5-54.5
54.5-55
55-56
56-57
57-58
58-60
60-62
62-64
64-65.5
65.5-67.5
67.5-69
69-72
72-75

Hips
56-60
60-62
62-64
64-66
66-70
70-73.5
73.5-77
77-80.5
80.5-54
84-87
87-90
90-93
93-96

Inside leg
41-45.5
45.5-50
50-52
52-56
56-60
60-63
63-66
66-69
69-71.5
71.5-74.5
74.5-77.5
77.5-78
78-78.5

Girls Plus Fit Schoolwear

Age (yrs)
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16

Height
98-104
104-110
110-116
116-122
122-128
128-134
134-140
140-146
146-152
152-158
158-164
164-165
165-166

Chest
59-61
61-63
63-65.5
65.5-68
68-70
70-73
73-76.5
76.5-79.5
79.5-83
83-86
86-90
90-93
93-96

Waist
57.5-59.5
59.5-60
60-61
61-62
62-63
63-65
65-67
67-69
69-70.5
70.5-72.5
72.5-74
74-77
77-80

Hips
61-65
65-67
67-69
69-71
71-75
75-78.5
78.5-82
82-85.5
85.5-89
89-92
92-95
95-98
98-101

Inside leg
41-45.5
45.5-50
50-52
52-56
56-60
60-63
63-66
66-69
69-71.5
71.5-74.5
74.5-77.5
77.5-78
78-78.5

Boys Schoolwear

Age (yrs)
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16

Height
98-104
104-110
110-116
116-122
122-128
128-134
134-140
140-146
146-152
152-158
158-164
164-170
170-176

Chest
54-56
56-58
58-60.5
60.5-63
63-64
64-67
67-71
71.5-74.5
74.5-78
78-82
82-86
86-88
88-91.5

Waist
52.5-54.5
54.5-55
55-56
56-57
57-59
59-60
60-63.5
63.5-65.5
65.5-68
68-71.5
71.5-75
75-77.5
77.5-80

Hips
56-60
60-62
62-64
64-66
66-68
68-71
71-74
74-77.5
77.5-81
81-85
85-89
89-91.5
91.5-94

Inside leg
41-45.5
45.5-50
50-52
52-56
56-59
59-62
62-65
65-68
68-70.5
70.5-73.5
73.5-76
76-79
79-82

Boys Plus Fit Schoolwear

Age (yrs)
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16

Height
98-104
104-110
110-116
116-122
122-128
128-134
134-140
140-146
146-152
152-158
158-164
164-170
170-176

Chest
59-61
61-63
63-65.5
65.5-68
68-69
69-72
72-76
76-79.5
79.5-83
83-87
87-91
91-93
93-96.5

Waist
57.5-59.5
59.5-60
60-61
61-62
62-64
64-65
65-68.5
68.5-70.5
70.5-73
73-76.5
76.5-80
80-82.5
82.5-85

Hips
61-65
65-67
67-69
69-71
71-73
73-76
76-79
79-82.5
82.5-86
86-91
91-94
94-96.5
96.5-99

Inside leg
41-45.5
45.5-50
50-52
52-56
56-59
59-62
62-65
65-68
68-70.5
70.5-73.5
73.5-76
76-79
79-82

Clothing
Footwear
Select a category to get further help and information.

Clothing

All our children's clothes allow generous room for growth and most are dual sized by age. Use the guide above and the measurements provided to ensure you order the correct size.

Footwear

Download the Footwear Fit Guide

Please check the size chart has printed out to the correct size by measuring the scale at the bottom of the chart, this must measure 10cm otherwise the indicated size may not be accurate.

Please fold the paper along the dotted line and place the chart on a hard surface against an immovable vertical surface such as a skirting board to help gain an accurate measure.

Place the left foot on the chart and record the length of the foot (e.g. 2¼) repeat for the right foot (e.g. 2½).

Based on these results a size 3 would be selected. As most people's feet are not the same size the size of shoe is determined by the largest foot.

Children will also need some growing room so if the fitting indicates either foot is longer than the full size it may be beneficial to order the next size up.

The "Footwear Fit Guide" will open a PDF document in a new window. If you do not currently have Adobe Reader installed, please download it by clicking the 'Get Adobe Reader' button below.

1

Colour
COLOUR
- BLACK

2

Quantity

Quantity

Payment options are selectable in checkout

1. Interest Free Payments
- 20 weeks interest free credit available on all items.
- 52 weeks interest free credit available on items over £250.
- Interest free credit is available on all insurance products.
2. Buy Now Pay Later (BNPL)
- Delay payment for 12 months when you spend £50 or more.
- Interest is calculated and compounded daily at a typical rate of 44.9% per annum for the delayed payment period and repayment period and is charged to your account at date of order as a lump sum. Your interest rate is personal to you and will be detailed in checkout.
- Remember, avoid paying all interest by paying the cash price before the end of the delayed payment period. This can be done in one full payment or multiple partial payments. Find out how BNPL works in checkout.
3. Spread the Cost
- Lower monthly payments by taking longer to pay.
- Pay over 104 weeks (2 years) for orders over £50.
- Pay over 156 weeks (3 years) for orders over £99.
- Interest is charged at your account rate for this payment option.

Payment options are selectable in checkout along with the cost breakdown, just click on the item description.

Over 18s only. Credit provided, subject to credit and account status, by Shop Direct Finance Company Limited. Registered office: First Floor, Skyways House, Speke Road, Speke, Liverpool, L70 1AB. Authorised and regulated by the Financial Conduct Authority.

Cancel

From £ per week
From £ per week interest free
View all

From £ per week for this item

Spread the cost further

Choose our lowest weekly price and pay just £ per week for weeks for this item

×	Britax Kidfix i-Size 3.5 Years - 12 Years Approx Height 100 - 150 cm i-SIZE ISOFIX Highback Booster Car Seat - Cosmos Black £	weeks (% annual interest rate total amount payable £)	£ per week
1×	- £	weeks 0% APR	£ per week
1×	Services: £	This service charge will be due in full on your next statement.

104 weeks available on orders over £50.00
156 weeks available on orders over £99.00
Interest free payments available on all insurance products.

Credit Explained

Interest bearing payment options shown are examples only and will be charged at your applicable interest rate

Payment options are selectable in checkout.

Interest bearing payment options shown are illustrations only. More options may be available in the checkout at your applicable interest rate.

Over 18's only. Credit provided, subject to status, by Shop Direct Finance Company Limited. Registered office: First Floor, Skyways House, Speke Road, Speke, Liverpool, L70 1AB. Authorised and Regulated by the Financial Conduct Authority.

0% APR

With our interest free credit you could get this item from just £ per week and never pay more than £.

This means you could get this item from just £ a week interest free. See below..

×	Britax Kidfix i-Size 3.5 Years - 12 Years Approx Height 100 - 150 cm i-SIZE ISOFIX Highback Booster Car Seat - Cosmos Black £	weeks Interest free 0% APR	£ per week
1×	- £	weeks Interest free 0% APR	£ per week
1×	Services: £	This service charge will be due in full on your next statement.

20 weeks interest free available on all items
52 weeks interest free available on items over £250
Interest free payments available on all insurance products.

Credit Explained

Payment options are selectable in checkout.

With a LITTLEWOODS Account you can spread the cost to suit you. Select from the following payment options at checkout.

Services: £
This service charge will be due in full on your next statement.

Payment options are selectable in checkout.

Interest bearing payment options shown are illustrations only. More options may be available in the checkout at your applicable interest rate.

What is Buy Now Pay Later?

Buy Now Pay Later is an interest bearing option that allows you to delay payments on your purchases for up to 12 months. The delayed payment period starts from the date of order (including pre-ordered items and those not ready for immediate dispatch).

You can choose:
A delayed payment period of 12 months and then a repayment period of 104 weeks when you spend £50 or more.
A delayed payment period of 12 months and then a repayment period of 156 weeks when you spend £99 or more.

How interest is calculated?

Interest will be charged for the delayed payment period and the chosen repayment period.

Interest is calculated and compounded daily at a typical rate of 44.9% per annum for the delayed payment period and repayment period and is charged to your account at date of order as a lump sum. This calculation factors in the planned payments that are requested during the repayment period. Your interest rate is personal to you and will be detailed in checkout.

How to avoid paying interest?

You can avoid paying all interest for both periods by paying the cash price before the end of the delayed payment period. This can be done in one full payment or multiple partial payments.

Making partial payments may result in a portion of the lump sum of compound interest being refunded at the end of the delayed payment period.

Remember if you choose not to pay the full cash price before the end of the delayed payment period any outstanding balance plus the lump sum of compound interest applied at the date of order will become payable.

How do I make a Buy Now Pay Later payment?

To make a full or partial payment simply log into My Account, choose “Make a payment”, select “Pay Buy Now Pay Later” and allocate your payment to the specific item(s) you wish to pay off. Alternatively, you can call us.

What happens after the delayed payment period?

If you have not made any payments towards your Buy Now Pay Later, the outstanding balance plus the lump sum of compound interest will be payable across your chosen repayment period. This will now be included in your account minimum payment request each month.

If you have made partial payments, but not cleared the full cash price before the end of the delayed payment period, the outstanding balance plus a reduced lump sum of compound interest will become payable. The repayment amount agreed for the repayment period will remain the same, meaning the repayment period may be shorter than originally agreed.
If you have paid the cash price in full before the end of the delayed payment period, you will not pay any interest.

What is excluded from Buy Now Pay Later?

The costs for delivery, installation services and any warranty and insurance products cannot be placed on Buy Now Pay Later. Buy Now Pay Later availability is subject to your credit and account status.

Do I still have to pay my minimum payment?

Yes, allocating payments to Buy Now Pay Later will not cover the minimum payment for your Littlewoods account. If you have a non-Buy Now Pay Later balance on your Littlewoods account you will still need to make at least your minimum payment as shown on your statement.

Over 18's only. Credit provided, subject to credit and account status, by Shop Direct Finance Company Limited. Registered office: First Floor, Skyways House, Speke Road, Speke, Liverpool, L70 1AB. Authorised and regulated by the Financial Conduct Authority.

Spread the cost

Total
£229.99

View more from Britax Britax Car Seats Car Seats Baby & Kids	Tweet Like Pin Share Email EAN: 4000984312089 Item number VHUFE Britax Romer KKidfix i-Size 3.5 Years - 12 Years Approx Height 100 - 150 cm i-SIZE ISOFIX Highback Booster Car Seat - Cosmos Black COMFORT AS THEY GROW Imagine your little one experiencing ultimate ergonomics in the KIDFIX i-SIZE from age 3.5 to 12 years (100cm to 150cm). The German made highback booster adjustable headrest grows alongside your child to provide a perfect fit. For those warmer days, the air ventilation holes provide a touch of coolness. XP-PAD Install your seat belt into the shock-absorbing foam XP-PAD. In an accident, the XP-PAD reduces an abrupt forward head movement by up to 30%, preventing you childs chin from hitting their chest. Britax Römer internal tests and simulations ADVANCED SIDE IMPACT PROTECTION ? SICT The Side Impact Cushion Technology (SICT) reduces the force of a side impact by up to 40%, and directs the forces away from your treasure. Simply adapt the SICT to the side of the car seat, and your child is safe. Britax Römer internal tests and simulations SECURE GUARD The SecureGuard* adds a fourth contact point to secure the lap belt safely across your childs pelvis reduces abdominal forces by up to 35%. Britax Römer internal tests and simulations COMFORT AND PRACTICALITY AT ITS CORE Padded soft fabric covers and carefully placed air ventilation holes on the shell ensure your child travels in comfort. The slim design of the seat allows for three KIDFIX i-SIZE seats to be installed in the back row of a range of cars, the headrest markings help the parents find the right headrest height. EASY HANDLING - MAXIMUM FLEXIBILITY Weighing just 6.7kg the i-Size approved high back booster, is a light feather in the world of car seats. Imagine the ease of effortlessly moving the seat between cars without the usual hassle. Installation is as simple as it is secure, thanks to the integrated ISOFIX system. 3.5 years - 12 years \| 100 - 150 cm XP-PAD reduces abrupt forward head movement up to 30%, prevents childs chin hitting their chest. Britax Römer internal tests and simulations The Side Impact Cushion Technology (SICT) reduces the force of a side impact by up to 40%* * Britax Römer internal tests and simulations SecureGuard* secures lap belt safely across your childs pelvis, reduces abdominal forces by up to 35% *Britax Römer internal tests and simulations Comfortable, Protective Headrest Air ventilation through ventilation holes, for more air circulation to make your child feel cool, calm and cared for. Quick Remove Washable Covers Designed and Manufactured in Germany

Customer Reviews
Questions and Answers

Popular searches

Not To Be Missed

Womens Fashion

Accessories

Footwear

Lingerie & Nightwear

Sportswear

Fit

Shop By Brand

See Also

Be Inspired

Not To Be Missed

Mens Fashion

Footwear

Accessories

Underwear & Nightwear

Sportswear

Fit

Shop By Brand

See Also

Be Inspired

Not To Be Missed

Girls Clothing

Boys Clothing

Baby Clothing

Footwear

Accessories

Sports

School Uniform

Baby Essentials

The Nursery

Kids Bedroom

Fashion Brands

Nursery Brands

Kids Shops

See Also

Not To Be Missed

Baby

Pre School

Dolls, Soft Toys and Play Figures

Create & Discover

Games, Puzzles & Books

Outdoor Fun

Fancy Dress

Age

Shop By Character & Brand

Discover

Not To Be Missed

Shop By Activity

Sports Equipment

Supplements

Luggage & Travel

Womens Sportswear

Mens Sportswear

Kids Sportswear

Shop By Brand

Not To Be Missed

Shop By Room

Bedroom Furniture

Bedding

Living Room Furniture

Dining Furniture

Bathroom Furniture & Fittings

Office, Hallway & Storage

Cooking & Dining

Decor & Accessories

Laundry, Utility & Storage

DIY & Home Improvements

Petcare

Garden & Outdoor

Shop By Brand

Be Inspired

Not To Be Missed

Laundry Appliances

Cooking & Dishwashing

Refrigeration

Floorcare

Heating, Cooling & Air Treatment

Small Kitchen Appliances

Batteries