Slow fashion is a way to "identify sustainable fashion solutions, based on the repositioning of strategies of design, production, consumption, use, and reuse, which are emerging alongside the global fashion system, and are posing a potential challenge to it." -Wikipedia
Slow fashion is about purchasing and creating fashion with integrity and awareness of the impact the entire consumer process has on the planet. It connects the awareness of social and environmental responsibility with the appreciation of wearing and acquiring beautiful, well-made, and lasting clothing and accessories.
Eco-fashion is primarily concerned with how the materials and production processes directly impact the environment. The carbon footprint of producing overseas and needing to transport far distances plays a major role in this. The development of new techniques and fabrics that require less chemicals and low water use are also a focus. Utilizing recycled materials and up-cycled vintage materials are a major trend in the slow fashion movement.
Lasting fashion is about investing in quality fashion items that will stand the test of time both in style and fabrication. Items that are hand-made with high quality fabrics will outlive fast fashion lower quality items. Generally with fast fashion items, construction and materials show wear after one season. Also, often the styling is based on passing trends that are short-lived and quickly become irrelevant. Whereas with slow fashion items, they often are more classic in styling with the focus being on subtle design details and hand-dyed or printed fabrics.
Although price is sometimes a deterrent for purchasing slow fashion items, in the long run, one piece of well-designed and well produced clothing will outlive five cheap pieces of clothing. Generally, the more a person spends on their clothes, the more value the item will hold. It makes the piece more special and therefore will make you feel better about what you choose to wear, and the designers you support.