These heavier 40 denier pantyhose are great for winter wear.  They are still sheer to almost opaque and make your legs look great.  The sculpted legs give you that perfect fit with no sagging or bagging at the knees and ankles.  Follow the Transparenze size guide with the product description and not the Amazon sizing chart, and you should get a perfect fit, use the weight as the primary deciding factor if you are in that grey area between sizes.  These pantyhose make your legs feel like they are encased in silk, feeling so good you can wear them all day.  These are very tough pantyhose and will last you for many wearings.