The Britax Marathon is a convertible car seat ideal for parents seeking premium comfort and a higher, forward-facing harnessed weight capacity. The seat features side impact protection, which distributes crash forces, shields from vehicle intrusion, and contains the head and body.
The tangle-free, five-point harness with four harness heights ensures a snug and secure fit. Premium push-button LATCH connectors provide a quick, simple and tight installation. Unique features include the patented Versa-Tether for energy management, and rear- and forward-facing recline for child comfort and positioning.
Recommended Use
For proper fit, your child must fall within the weight, standing height, and seated shoulder height ranges listed for this product.
Child Weight
- Rear Facing: 5 lbs. - 35 lbs.
- Forward Facing: 1 year & 20 lbs. - 65 lbs.
Standing Height
Seated Shoulder Height
- Rear Facing: 9.5'' - 16''
- Forward Facing: 12'' - 16''
Dimensions
- Product Weight (lbs): 16.5
- Exterior Product W x H x D (in): 19.5 x 27.5 x 25.5
- Seating Compartment Height (in): 24.5
- Seat Area Depth/Width (in): 9/11
- Shoulder Width (in): 11.75
- Harness Slot Heights (in): 10 / 12.25 / 14.5 / 16.75
- Buckle Strap Depth (in): 5.25