Ratings Scale Explained
1 STAR fabrics rate at least 1,000g/m2/day. Great for pre-race warm-ups or unexpected cloud bursts, but not recommended for long fast paced rides or warmer conditions.
2 STAR fabrics rate at least 5,000g/m2/day. This provides some moisture vapor transfer, but if you’re riding hard enough to sweat, especially in cold and rainy conditions, you will probably see some condensation on the inside of the garment.
3 STAR fabrics rate at least 10,000g/m2/day, and the garments have some venting capability. Most people can stay comfortable in these garments, especially if they take advantage of venting capabilities like pit or core vents, 2-way front zippers, or open cuﬀs.
4 STAR fabrics rate at least 10,000g/m2/day, might have wicking linings, and the garments have multiple venting options. Wicking linings aid in the eﬃciency of moisture vapor transfer and provide a drier next-to-skin feel. Venting options like pit or core vents, 2-way front zippers, or open cuﬀs allow you to adjust airﬂow.
5 STAR, Industry leading breathability here. At least 15,000g/m2/day, wicking linings, and multiple venting options. For high output activities in varying conditions, this is the way to go!
1 STAR garments will at least be treated with a Durable Water Repellant (DWR) ﬁnish and/or have a tight weave and design that will provide some water repellency. Great for short rides in light/intermittent precipitation.
2 STAR garments will use fabrics rated 3,000mm-10,000mm or even higher, but might have strategic panels of non-waterproof fabric, or unsealed seams. Generally designed to be waterproof in the areas where you’re most likely to get hit by raindrops and road spray, but not designed to keep you completely dry in a downpour.
3 STAR garments use only fabrics rated at least 10,000mm, but might not be entirely seam sealed. These will keep you dry in most conditions, but you might see localized areas of leakage in extended downpours.
4 STAR garments will use only fabrics rated 3,000-15,000mm, and have taped or welded seams. Bring on the rain, snow, wind, sleet, hail, drizzle, fog, and mud. If all your vents, zippers, cuﬀs and collar are sealed, these garments should keep the elements out for most rides.
5 STAR garments will have fabrics rated at least 15,000mm, and have taped or welded seams. If you’re going to be out in nasty weather for extended periods of time, these are the garments for you! Just make sure to seal all your vents, zippers, cuﬀs and collar before stepping out into a downpour.