It sounds like Jack of Spades has created a premium denim product that combines the best of both worlds - a luxurious soft wash with a hint of stretch for ease of movement. The "Jack" fit, with its straight leg and comfortable mid-rise, is a stylish and modern take on classic denim. The use of stretch denim is a thoughtful addition, as it allows for greater flexibility and comfort, making this denim suitable for a wide range of activities and occasions.

The blend of cotton and elastane is a popular choice in denim production, as it provides a comfortable and durable fit that retains its shape even after multiple wears and washes. The fact that this product is machine washable is also a convenient feature that will appeal to customers who want to maintain the quality and integrity of their denim without sacrificing convenience.

Overall, it seems like Jack of Spades has created a denim product that is both stylish and functional, with a focus on quality and comfort.