The byACRE Carbon Ultralight is a Danish carbon-fibre rollator weighing 10.6 lb. It folds to 9.8 inches and stands up on its own once folded, so it does not lie across the boot of the car.
It comes in three seat widths, which byACRE call Tracks: Compact at 16.1 inches, Regular at 16.5, Wide at 18.5. All three share one handle range of 30.5 to 37.4 inches, so you are choosing by how you want to sit rather than by your height.
The trade for the weight is capacity, at 285 lb, and that is worth knowing up front. It comes in eight colours.
Try it before you buy
 Key specifications: Weight to lift: 10.6 to 10.8 lb; Weight limit: 285 lb; Seat height: 22.4 to 24.0 in; Handle height: 30.7 to 37.4 in; Seat width: 16.1 to 18.5 in; Outside width: 23.6 to 26.6 in; Between the handles: 13.4 to 16.3 in; Length: 26.4 in; Wheels: 7.9 in; Brakes: Hand brakes, hidden cables; Backrest: Sold separately; Bag or basket: Organiser bag included; Folded size: 26.0 × 9.8 × 31.5 in. byACRE figures.
 Frequently asked questions:
 Will the byACRE Carbon Ultralight Rollator go in my car? It folds. Folded it is 9.8" (250 mm) wide, which is what decides whether it stands in a footwell or lies flat across the boot.
 Does the byACRE Carbon Ultralight Rollator come in more than one size? Yes, in three sizes: Compact, Regular and Wide. The table above shows what differs between them. Everything else is the same walker.
 What height of person is the byACRE Carbon Ultralight Rollator for? Every height is covered: the Compact suits people up to 6'0" and the Regular and Wide 5'5" and up.