Table 1. COM-B factors influencing the purchase of SPO.

Capability	Opportunity	Motivation
Knowledge about the issue	SPO product availability	Empathy, compassion and love for the environment
Critical thinking	Legible, clear product labels	Guilt
Capacity to afford ‘green’ products	Visibility	Perceived consumer efficacy
Time	Social norms	Shopping habits
Energy		Values / Moral compass
		Health benefits