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Slim Car Seats

Discover slim car seats from top brands such as Joie, Graco, Maxi-Cosi and Silver Cross. Many feature group 0+/1/2/3 designs, isofix compatibility and high back booster styles. Ideal for fitting three across in a row or maximising back seat space, these seats keep travel compact and comfortable.

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251 products
VALUE 3xnectar pts
Cuggl R129 Standard Booster Car Seat - Black
Rating 4.8 out of 5, from 39 reviews
£15.00

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VALUE 3xnectar pts
My Babiie MBCS50 Toddler to Booster R129 Car Seat - Black
Rating 4.9 out of 5, from 28 reviews
£50.00
Free Delivery

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VALUE 3xnectar pts
Graco Junior Maxi R44 Booster Car Seat - Black 
Rating 4.7 out of 5, from 1702 reviews
Save £15.00
£25.00

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VALUE 3xnectar pts
Joie Elevate R129 Toddler to Booster Car Seat - Shale
Rating 4.8 out of 5, from 542 reviews
£65.00

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VALUE 3xnectar pts
Graco Junior Maxi i-Size R129 Booster Car Seat - Midnight
Rating 4.8 out of 5, from 231 reviews
£40.00

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VALUE 3xnectar pts
Joie Tilt Group 0+/1 R44/04 Deep Recline Car Seat - Pavement
Rating 4.7 out of 5, from 617 reviews
£75.00

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VALUE 3xnectar pts
My Babiie MBCS80 Foldable Toddler ISOFIX Car Seat - Black
Rating 4.8 out of 5, from 17 reviews
£70.00
Free Delivery

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VALUE 3xnectar pts
Graco Booster Basic R129 Car Booster Seat - Black
Rating 4.8 out of 5, from 91 reviews
Our Lowest Price Ever
£18.00

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CLEARANCE BADGE
Cuggl R129 High Back Booster Car Seat
Rating 4.4 out of 5, from 123 reviews
Save 20%
£32.00

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VALUE 3xnectar pts
Cuggl i-Size R129 High Back Booster Car Seat- Black
Rating 5.0 out of 5, from 1 reviews
£40.00

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VALUE 3xnectar pts
Cuggl ISOFIX R129 High Back Booster Car Seat
Rating 3.9 out of 5, from 10 reviews
£60.00

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VALUE 3xnectar pts
Cuggl R129 Isofix 123 Car Seat
Rating 4.6 out of 5, from 79 reviews
£80.00

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VALUE 3xnectar pts
BebeConfort Manga Isofix R129 Car Booster Seat - Black
Rating 4.5 out of 5, from 11 reviews
£40.00

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VALUE 3xnectar pts
Cuggl R129 Rotating Group 0+1-2-3 i-Size ISOFIX Car Seat
Rating 4.7 out of 5, from 148 reviews
£125.00

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VALUE 3xnectar pts
Joie Bold R Group 1/2/3 R44/04 ISOFIX Car Seat - Ember
Rating 4.7 out of 5, from 77 reviews
£120.00

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VALUE 3xnectar pts
Joie Elevate R129 Toddler to Booster Car Seat - Thunder
Rating 4.8 out of 5, from 542 reviews
£65.00

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VALUE 3xnectar pts
My Babiie MBCS400 Spin R129 Car Seat with Support Leg -Black
Rating 4.9 out of 5, from 30 reviews
£130.00
Free Delivery

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VALUE 3xnectar pts
My Babiie MBCS200 Spin R129 Car Seat with Top Tether - Black
Rating 4.8 out of 5, from 36 reviews
£100.00
Free Delivery

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VALUE 3xnectar pts
Graco SlimFit R129 Convertible Car Seat - Iron
Rating 5.0 out of 5, from 3 reviews
Our Lowest Price Ever
£120.00

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VALUE 3xnectar pts
Joie i-Trillo i-Size R129 Belted Booster Car Seat - Shale
Rating 4.8 out of 5, from 227 reviews
£60.00

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VALUE 3xnectar pts
Cosatto On The Go Travel Car Seat Silhouette
Rating 4.5 out of 5, from 2 reviews
£180.00
Free Delivery

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VALUE 3xnectar pts
Harmony Genesys Harnessed R129 Booster Car Seat
Rating 4.5 out of 5, from 33 reviews
£90.00

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VALUE 3xnectar pts
Joie i-Size R129 Itrillo FX ISOFIX Car Seat - Mercury Mesh
Rating 3.0 out of 5, from 1 reviews
£80.00

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VALUE 3xnectar pts
Joie Elevate R129 Group 1-2-3 Car Seat - Taupe
Rating 4.8 out of 5, from 542 reviews
£65.00

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VALUE 3xnectar pts
My Babiie MBCS23 High-Back Booster ISOFIX Car Seat - Black
Rating 4.7 out of 5, from 38 reviews
£60.00
Free Delivery

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VALUE 3xnectar pts
Harmony Genesys R129 High Back Booster Car Seat
Rating 4.8 out of 5, from 20 reviews
£55.00

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VALUE 3xnectar pts
My Babiie MBCS100 i-Size 2-in-1 Car Seat - Black
Rating 4.8 out of 5, from 24 reviews
£70.00
Free Delivery

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VALUE 3xnectar pts
Ickle Bubba Oracle i-Size ISOFIX R129 Car Seat - Grey
Rating 4.7 out of 5, from 3 reviews
£79.00
Free Delivery

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VALUE 3xnectar pts
Cuggl Isofix R129 Car Booster Seat - Black
Rating 4.9 out of 5, from 170 reviews
£35.00

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VALUE 3xnectar pts
Joie i-Juva R129 i-Size Birth To 12 months Car Seat - Shale
Rating 4.5 out of 5, from 188 reviews
£60.00

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VALUE 3xnectar pts
Joie i-Chapp FX R129 i-Size ISOFIX Car Booster Seat - Black
Rating 3.7 out of 5, from 3 reviews
Save 25%
£30.00

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CLEARANCE BADGE
Joie Steadi R129 Birth To 4 Years Car Seat - Shale
Rating 3.4 out of 5, from 5 reviews
Our Lowest Price Ever
£67.00

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VALUE 3xnectar pts
Maxi-Cosi Titan I-size R129 Car Seat Tonal Black
Rating 4.8 out of 5, from 24 reviews
Save 20%
£160.00

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VALUE 3xnectar pts
Joie Stages Group 0+/1/2 R44/04 Car Seat - Coal
Rating 4.7 out of 5, from 122 reviews
£100.00

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VALUE 3xnectar pts
Maxi-Cosi Rodifix R129 ISOFIX Car Seat - Black
Rating 4.9 out of 5, from 43 reviews
Save 20%
£80.00

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VALUE 3xnectar pts
Cybex Sirona GI R129 Car Seat & Base - Black
Rating 5.0 out of 5, from 1 reviews
£280.00

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VALUE 3xnectar pts
Joie Every Stage R129 Birth To 12 Car Seat - Shale
Rating 4.8 out of 5, from 40 reviews
£180.00

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VALUE 3xnectar pts
Maxi Cosi CabrioFix R129 i-Size Car Seat
Rating 4.8 out of 5, from 38 reviews
£130.00

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VALUE 3xnectar pts
Maxi-Cosi Rodifix R129 ISOFIX Car Seat Black
Rating 4.7 out of 5, from 22 reviews
Save 20%
£120.00

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VALUE 3xnectar pts
Joie i-Bold R129 Toddler To Booster Car Seat - Shale
Rating 4.9 out of 5, from 10 reviews
£160.00

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VALUE 3xnectar pts
Cybex Sirona GI R129 Car Seat - Black
Rating 4.0 out of 5, from 1 reviews
£220.00

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VALUE 3xnectar pts
Silver Cross Motion 2 R129 Car Seat - Black
Rating 4.8 out of 5, from 26 reviews
£325.00

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VALUE 3xnectar pts
Silver Cross Essentials Discover Group 2-3 ISOFIX Car Seat
Rating 4.8 out of 5, from 23 reviews
£90.00

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VALUE 3xnectar pts
Maxi Cosi Emerald S 360 R129 Car Seat Black
Rating 4.4 out of 5, from 30 reviews
Save 20%
£240.00
Free Delivery

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VALUE 3xnectar pts
Cosatto Get Set Grow Car Seat - D is for Dino
£179.95
Free Delivery

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VALUE 3xnectar pts
Maxi-Cosi Cabriofix R129 ISOFIX Car Seat Black With Base
Our Lowest Price
£140.00
Free Delivery

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VALUE 3xnectar pts
Britax Kidfix Isize R129 Booster Car Seat - Black
Rating 4.8 out of 5, from 73 reviews
£199.00

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VALUE 3xnectar pts
Joie Every Stage R129 Birth To 12 Car Seat - Cobblestone
Rating 4.8 out of 5, from 40 reviews
£180.00

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VALUE 3xnectar pts
Maxi-Cosi Emerald 360 ISOFIX R129 Car Seat - Graphite
Rating 4.5 out of 5, from 56 reviews
£300.00
Free Delivery

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VALUE 3xnectar pts
Britax Romer Discovery Plus Isofix Booster Car Seat - Black
Rating 5.0 out of 5, from 20 reviews
£140.00

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VALUE 3xnectar pts
Harmony Phoenix R129 i-Size ISOFIX Car Seat
Rating 4.6 out of 5, from 35 reviews
£125.00

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VALUE 3xnectar pts
Silver Cross Motion 2 ISOFIX R129 Car Seat - Glacier
Rating 4.8 out of 5, from 20 reviews
£325.00
Free Delivery

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VALUE 3xnectar pts
Maxi Cosi Titan S R129 I-size ISOFIX Car Seat
Rating 4.7 out of 5, from 23 reviews
£200.00
Free Delivery

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VALUE 3xnectar pts
Joie i-Spin 360 i-Size Spinning R129 Car Seat - Shale
Rating 4.8 out of 5, from 18 reviews
£200.00

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VALUE 3xnectar pts
Joie i-Pivot 360 i-Size Spinning R129 Car Seat - Shale
Rating 5.0 out of 5, from 13 reviews
£225.00

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VALUE 3xnectar pts
Cybex Aton B2 R129 Infant Carrier & Car Seat Base - Black
Rating 4.7 out of 5, from 14 reviews
£200.00

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VALUE 3xnectar pts
My Babiie MBCS02 i-Size R129 Car Seat And Base - Black
Rating 5.0 out of 5, from 9 reviews
£150.00
Free Delivery

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VALUE 3xnectar pts
Maxi-Cosi Pebble S R129 Infant Carrier Car Seat - Black
Rating 4.8 out of 5, from 11 reviews
£150.00
Free Delivery

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VALUE 3xnectar pts
Maxi-Cosi Onyx R129 Car Seat Graphite
Rating 4.9 out of 5, from 9 reviews
£230.00
Free Delivery

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VALUE 3xnectar pts
Silver Cross Discover R129 Booster Car Seat Space Black
Rating 4.7 out of 5, from 12 reviews
Our Lowest Price Ever
£99.00
Free Delivery

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Related categories

Group 1-2-3 Car SeatsI-size Car SeatsGroup 2-3 Car SeatsJoie Car SeatsIntegrated ISOFIX Car SeatsNot ISOFIX Compatible Car SeatsHigh Back Booster SeatsBaby Activity SeatsSwivel Car SeatGel Bicycle Seats