Bicycle helmet, day bike backpack (approx. 20 liters) with rain cover, comfortable sports shoes, optionally bike shoes, weather-appropriate and durable clothing in layers, optionally cycling jersey, optionally cycling gloves, air pump, bicycle tools, sun and rain protection, provisions and drinking water, water bottle and suitable holder, first aid kit, pocket knife, mobile phone, optionally phone holder for the handlebars, optionally headlamp and reflectors, maps