I love to shop, so this item is in excellent condition, having been used only once or twice. Depending on where you live, I think it could be worn for a long period, except in the dead of winter. Waist can be adjusted. Shoulder straps are made of elastic material. No slit, but it's not tight, so leg movement is good. Although it's in excellent condition, it's still a used item, so please refrain from purchasing if you are sensitive to such things. Color: Khaki系 (Khaki-based) Pattern: Solid Stains, tears, odors, etc.: None