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The North Face Summit Tsirku GORE-TEX Pro Bibs are purpose built for riders chasing the deepest days and the rowdiest terrain. Think bottomless pow, made with bomber GORE-TEX Pro 3L fabric reinforced by Spectra® ripstop, they repel off wet snow, steep bootpacks, and endless face shots while keeping you dry and moving free. With venting, drop-seat zips, and pockets designed for serious missions, these bibs are the kind of gear you trust when every turn feels like a dream line.
Main Body – 75D x 75D 134 g/m² GORE-TEX Pro 3L—91% recycled polyester, 9% polyethylene Spectra® ripstop with non-PFC durable water-repellent (non-PFC DWR) finish
Upper Bib – 75D x 150D 242 g/m² 91% recycled polyester, 9% elastane double weave with FLASHDRY™ and non-PFC DWR finish
Kickpatches – 420D x 500D 250 g/m² 100% nylon with non-PFC DWR finish
GORE-TEX – GORE-TEX products are designed to provide superior comfort and durably waterproof protection for a wide range of outdoor activities. The GORE-TEX membrane’s revolutionary patented technology is specifically engineered to form an impenetrable barrier against wind and water while maintaining breathability. GORE-TEX fabric is used in a two-layer construction for a lighter and softer feel and in a three-layer construction for a more heavy-duty alternative.
Non-PFC DWR Finish for Added Water Repellency
Regular Fit
Articulated Fit Built for Skiing and Riding
Suspender-Adjustment System – A spring-loaded locking cam self-equalizes with a single pull.
Summit Series™ – Designed to be the strongest and lightest gear available. Our athletes depend on Summit Series® products to help keep them warm and dry in the most punishing weather on the planet.
Two Secure-Zip Chest Pockets – One with an internal gear clip and mesh pouch and one with a gear loop.
Angled Hand Pockets With Reverse-Coil Zips
Two Thigh Pockets – Exposed, #5 YKK® AquaGuard® zips, one with an internal gear clip and mesh pouch and one with a gear loop.
Two-Way, #5 YKK® VISLON® AquaGuard® Side Zips Provide Drop-Seat Functionality and Venting
Easy On/Off and Internal Access – Two-way, #5 YKK® VISLON® AquaGuard® side zips provide drop-seat functionality and venting.
Hem Features a Zippered Side Seam and Snap Adjustment for Boot Access
Stretch Hem Gaiters With Gripper Elastic for a Secure Fit With Boots
High-Denier Kickpatches and Hem Binding for Increased Durability
Jacket-to-Pant Integration – Point at back waist for compatibility with the Men’s Summit Tsirku GTX Pro Jacket.
Leg-Opening Circumference – 22″
| 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° |