Yes. Our rain gear has a factory tested waterproof rating of 10,000 mm. There are three key factors working together to provide 100% waterproofness: 1 – The top (outside facing) layer of fabric has a durable water repellent (DWR) finish applied to it to help water bead on the fabric surface. When water beads on the surface, this helps to prevent water from saturating that top layer of fabric. We use a fluorine free BIONIC-FINISH ECO technology DWR from Germany. 2 – Breathable waterproof inner membrane. This is the magic that allows body perspiration to escape while preventing water from coming through to the inside of your garment. This membrane is applied to the inside of the top layer. If your rain gear has a liner (thin or fleece) – you won’t actually see this layer. 3 – Taped Seams. Adhesive seam sealing tape is applied to all seams to prevent water from entering your raingear at these potentially vulnerable stitching lines.