Fit adults aswell as children, Adjustable seats/handlebars for people who are taller/shorter
Metals, Rusts?, Ease of welding?
Waterproof? For when the snow melts
Sustainability, Recycle? Reuse? Reduce? Repare?
Lightweight, Aluminium, Alloys
Advertising, Internet, Magazines/Newspapers, Snowboarding/Skiing shops
Should I make it adjustable?, Locking mechanisms, Bike seats
Ergonomics, Comfort, Padding, Right size/meterials, Use an existing bike seat
Backpack, Lightweight?, Portable?, Materials?, Fabric