The Blest Jacket features PrimaLoft insulation, while the Long Distance Jacket features synthetic thermal insulation. Despite having a thinner insulation layer, the Blest Jacket's lightweight design makes it easy to pack and convenient for outdoor activities. On the other hand, the Long Distance Jacket is the warmest of the two and features a stronger rip-stop shell material for added durability. Both jackets have their unique benefits and are suitable for different outdoor activities depending on the weather conditions.