Is anyone using this with an older (4 yrs), heavier child?

Tech Specs:

Material:

Cordura (waterproof & washable) 

Suspension:

Adjustable harness, load lifters & stabilizer straps, padded shoulder straps 

Torso Adjustment:

Yes, adjusts for torso sizes 17-20in (43-50cm) 

Storage Capacity:

1500cu in (24.5L) 

Recommended Child Weight:

Up to 55lb (2494g) 

Sun / Rain Hood:

Yes, sunshade & rain cover included 

Weight:

4lb 8oz (2040g) 

Recommended Use:

Hiking, ultralight backpacking, trips to town 

Manufacturer Warranty:

Lifetime 

Country of Origin:

Austria