The suitable columba folding bikes are RJ26A, SP26S. It has adjustable strap, can be carried on shoulder.
New 24" & 26 Inch Mountain Folding Bike, 21-Speed Adult bicycle Dual Suspension
20" 22" 24" 26" Folding Bike - Bicycle With 21 Gears, Carbon Steel Frame, Folding Wheel For City Traffic, Folding Wheel With Cushion
EieiKaha Folding Mountain Bike, 26’’ Folding Mountain Bike 21 Speed Full Suspension High-Carbon Steel Frame Portable Bicycle, Foldable Bikes for Youth/Adult/Men/Women, Black (Black-26in&21Speed)
Esyogen 26" Folding Bike Mountain Bike Full Suspension Disc Brakes Bicycle Adult Carbon Steel Folding Frame Bike
EasegantEl 26'' Folding Mountain Bike,21 Speed Foldable Folding Bike for Adult,with Dual Disc Brakes,Commuting Cycling,Mountain Trails,Countryside Roads,Carbon Steel Frame,Black
