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The Flylow Siren GORE-TEX 3L Bibs keep you dry and comfortable with premium GORE-TEX protection and strategic outer thigh vents for when things heat up. With fully seam-taped construction and reinforced knees that can handle anything, these bibs have your back so you can focus on what really matters, absolutely crushing it on the mountain with total confidence!
100% Recycled Nylon Plain Weave
100% Recycled Polyester Brushed Knit Backer
Textured Yarns for a Soft, Quiet Fabric
Durable Water Repellent (DWR) Treatment – All of Flylow's exterior shells and midlayers are treated with a DWR coating, which stops precipitation from soaking into the fibers of a product's face fabric, aiding in quick fabric dry times and helping you stay dry and warm in storms. All of Flylow's technical garments will retain 80% water repellency after 20 washes.
bluesign® Certified Laminate – Flylow works with the best partners in the textile industry to ensure their products and materials meet the highest safety and environmental standards. From bluesign® approved supply chains to products tested and approved by Oeko-Tex for consumer safety to Durable Water Repellents made without PFCs, they are certifying their supply chain and retaining all supply chain certificates for full transparency and to ensure that they use materials that align with their goal of making the least impact possible on the environment.
OEKO-TEX® Certified Laminate
100% PFAS-Free* Laminate
GORE-TEX 3L – GUARANTEED TO KEEP YOU DRY®
Regular Fit
500 Denier Reinforced Knees and Cuffs
2 Zippered Thigh Pockets
Chest Pocket and Seat Pocket
Beacon Sleeve And Attachment in Right Hand Pocket
Outer Thigh Vents
Waterproof Zippers
GORE-TEX believes they have a responsibility to help find solutions that lead to a better tomorrow. The ePE (expanded polyethylene) membrane in new GORE‑TEX products is a key milestone in their responsible performance journey, providing high-performing, durable products that are engineered for long product life. The all-new GORE‑TEX ePE membrane is light and thin, yet strong, and it's PFC free with a reduced carbon footprint.
| Warmth | Description | Ideal Conditions |
| Uninsulated (Shell) | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
| Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
| Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
| Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |