GU slacks. I wore them once after purchase, but they've been stored in the closet since then. I think they can be used all season. I think they will be especially useful in the upcoming hot season. I washed them after wearing. They are almost new. Please feel free to ask any questions in the comments. Please purchase only if you understand. Color: Blue系 Silhouette: Straight Stains, tears, odors, etc.: None Color: Black系