If you're looking for a medium weight, comfortable fabric, this Royal Navy Hopsack is perfect. Not only are we of the belief that a navy suit should be in every man's wardrobe, we also know how tough it can be to find pieces that will remain a staple in your collection. This is one of those pieces. It's a medium weight fabric (only 265 grams) which makes it perfectly comfortable for regular wear, while remaining resistant to wrinkles. Made of 100% worsted wool, this Super 120's year-round fabric is meant to be worn for any occasion.