Complex sentence: Developing a garment with a cultural and emotional connection is also pertinent to the purpose behind slow fashion: consumers will keep an article of clothing longer than one season if they feel emotionally or culturally connected to the article of clothing.
Split into simpler sentences: Developing a garment with a cultural and emotional connection is also pertinent to the purpose behind slow fashion. Consumer's will keep an article of clothing longer than one season if they feel emotionally or culturally connected to the article of clothing.