Built for big-mountain skiing and riding, the Women's Summit Tsirku GTX Pro Bib is ready for the steepest lines. An exclusive fabric blend pairs waterproof GORE-TEX® Pro with durable Spectra® ripstop to deliver a full suite of features designed for serious snowsports — articulated fit built for skiing and riding, full-coverage stretch bib, high-denier kickpatches, jacket-to-pant integration, and a self-equalizing suspender system. From lift-served resort laps to bootpack-accessed big-mountain descents, this is the premium Summit Series bib for women who push the limits.
Regular Fit, Articulated for Skiing & Riding
A regular fit with an articulated pattern built specifically for skiing and riding — the darting and pre-shaping let you move into a deep stance, drop into a landing, and reach for the next pole without fabric bunching or pulling at the knees and hips.
GORE-TEX® Pro 3L with Spectra® Ripstop
An exclusive TNF fabric blend pairs durably waterproof GORE-TEX® Pro 3L with Spectra® ripstop for increased durability — Spectra® is one of the world's strongest fibers, integrated directly into the face fabric to protect against edge cuts, crampon contact, and rope burn.
High-Denier Kickpatches + Hem Binding
High-denier kickpatches and hem binding deliver increased durability at the most-stressed zones — protects the cuff from ski edge damage, boot buckle wear, and the inevitable curb and rock contacts of big-mountain descents.
91% Recycled Body Fabric
Body fabric is made with 91% recycled polyester — premium GORE-TEX® Pro 3L performance with a much lighter footprint on the planet than virgin polyester construction.
Non-PFC DWR Finish
A non-PFC DWR finish on the body, upper bib, and kickpatches causes snow, sleet, and slush to bead up and roll off — keeps the outer fabric from saturating during heavy snow and adds extra weather protection to the GORE-TEX® Pro system.
Jacket-to-Pant Integration
A jacket-to-pant integration point at the back waist delivers compatibility with the Women's Summit Tsirku GTX Pro Jacket — locks the layers together to keep snow out on deep-powder days, no snow sneaking up between the layers.
Full-Coverage Stretch Bib
A full-coverage, stretch-woven upper bib with a reverse-coil center front zip provides easy on/off and internal access — the stretch-woven fabric (91% recycled poly + 9% elastane double weave with FLASHDRY™) moves with you on the climb and seals out snow on the descent.
Self-Equalizing Suspender System
A suspender-adjustment system with a spring-loaded locking cam self-equalizes with a single pull — no fiddling with both sides to get the bib sitting right, just pull once and the cam locks both straps to the same height.
YKK® AquaGuard® Side Zips
Two-way, #5 YKK® VISLON® AquaGuard® side zips provide drop-seat functionality and venting — the YKK® AquaGuard® treatment sheds water and snow at the most-exposed entry points, and the two-way design lets you vent from the top or bottom.
Two Secure-Zip Chest Pockets
Two secure-zip chest pockets — one with an internal gear clip and mesh pouch, one with a gear loop — provide accessible storage for a phone, beacon, snacks, and small accessories. The gear clip and gear loop keep keys, radios, and tools secure during descents.
Angled Hand Pockets
Angled hand pockets with reverse-coil zips sit ergonomically along the hip — easy to reach without breaking your stance, and the reverse-coil zippers shed water and snow during wet conditions.
Two Thigh Pockets with AquaGuard® Zips
Two thigh pockets with exposed, #5 YKK® AquaGuard® zips — one with an internal gear clip and mesh pouch, one with a gear loop — provide high-capacity storage for skins, gloves, goggles, and snacks within easy reach on the lift or bootpack.
Zippered Side Seam + Snap Adjustment
The hem features a zippered side seam and snap adjustment for boot access — widen the cuff without removing the bib for skin-track transitions, lift-line crossings, and bootpack sections.
Stretch Hem Gaiters with Gripper Elastic
Stretch hem gaiters with gripper elastic secure a clean fit over or under ski and snowboard boots — the stretch fabric moves with you and the gripper elastic locks the gaiter in place so it doesn't ride up during deep-powder descents.
Materials & Construction
Main Body Fabric
75D × 75D 134 g/m² GORE-TEX® Pro 3L — 91% recycled polyester + 9% polyethylene Spectra® ripstop with non-PFC DWR finish
Upper Bib Fabric
75D × 150D 242 g/m² 91% recycled polyester + 9% elastane double weave with FLASHDRY™ and non-PFC DWR finish
Kickpatch Fabric
420D × 500D 250 g/m² DRYVENT™ 2L — 100% recycled nylon with non-PFC DWR finish
Recycled Content
Main body 91% recycled · Upper bib 91% recycled · Kickpatches 100% recycled
Waterproofing
GORE-TEX® Pro 3L (waterproof + breathable) + non-PFC DWR on body + upper bib + kickpatches
Wind Resistance
Windproof (GORE-TEX® Pro blocks wind penetration)
Durability
Spectra® ripstop in main body + 420D × 500D DRYVENT™ 2L kickpatches + hem binding
Fit & Sizing
Fit
Regular fit, articulated for skiing and riding
Sizes Available
XS · S · M · L · XL · XXL
Inseam Options
Short (SHT) 28.375" · Regular (REG) 30.375" · Long (LNG) 32.375"
Leg-Opening Circumference
21.5"
Construction Details
Upper Bib
Full-coverage, stretch-woven upper bib with reverse-coil center front zip (easy on/off + internal access)
Suspender System
Spring-loaded locking cam self-equalizing system (single-pull adjustment)
Side Zips
Two-way #5 YKK® VISLON® AquaGuard® side zips (drop-seat functionality + venting)
Chest Pockets
2 secure-zip chest pockets (1 with internal gear clip + mesh pouch, 1 with gear loop)
Hand Pockets
Angled hand pockets with reverse-coil zips
Thigh Pockets
2 thigh pockets with exposed #5 YKK® AquaGuard® zips (1 with internal gear clip + mesh pouch, 1 with gear loop)
Jacket Integration
Jacket-to-pant integration point at back waist (compatible with Women's Summit Tsirku GTX Pro Jacket)
Hem
Zippered side seam + snap adjustment for boot access + stretch hem gaiters with gripper elastic
Performance
Waterproofing
GORE-TEX® Pro 3L (industry-leading waterproof + breathable)
Wind Resistance
Windproof (GORE-TEX® Pro blocks wind penetration)
Breathability
Breathable (GORE-TEX® Pro membrane + FLASHDRY™ moisture management on upper bib)
Durability
Spectra® ripstop in main body + 420D × 500D DRYVENT™ 2L kickpatches + hem binding
Mobility
Articulated fit + stretch-woven upper bib + 9% elastane double weave + stretch hem gaiters
Venting
Two-way YKK® AquaGuard® side zips (top + bottom venting)
Activity
Best Use
Big-mountain skiing · Big-mountain snowboarding · Resort skiing · Backcountry skiing · Ski touring · Lift-served charging · Bootpack descents
Terrain
In-bounds resort + backcountry big-mountain terrain
Season
Winter (deep cold + snow + powder)
Designation
Summit Series™
What's Included
In Box
1 × Women's Summit Tsirku GTX Pro Bib
Machine wash cold on a gentle cycle with a mild technical wash (like Nikwax Tech Wash or Granger's Performance Cleaner) — close all zippers (center front, side AquaGuard® zips, chest, hand, thigh pockets) and secure any hook-and-loop before tossing it in.
Turn the bib inside-out before washing to protect the GORE-TEX® Pro 3L face fabric, the Spectra® ripstop weave, the YKK® AquaGuard® zips, the upper bib stretch-woven fabric, and the DRYVENT™ 2L kickpatches.
Tumble dry on low heat for 20-30 minutes to reactivate the non-PFC DWR finish — heat is essential to keep water beading on the surface rather than saturating the GORE-TEX® Pro shell and the upper bib fabric.
Do not bleach, do not use fabric softener, and do not use dryer sheets — all three can coat the GORE-TEX® Pro membrane and degrade the waterproof + breathable performance, and the Spectra® ripstop performance.
Do not iron, do not dry clean, and do not wring the bib when wet — wringing can damage the GORE-TEX® Pro membrane bond, the seam-sealing tape at stress points, and the self-equalizing suspender cam mechanism.
Re-apply a non-PFC DWR spray-on treatment (like Nikwax TX Direct or Granger's Performance Repel) after several washes to refresh the water-shedding performance of the GORE-TEX® Pro 3L shell and the DRYVENT™ 2L kickpatches.
Check the GORE-TEX® seam tape (especially at the knees, crotch, side zips, and suspender attachment points) periodically for lifting or peeling — small issues can be repaired with a seam-seal repair kit (like Gear Aid Seam Grip + WP5) before they become leaks.
Inspect the 420D × 500D DRYVENT™ 2L kickpatches and the hem binding periodically for abrasion or seam stress — these zones take the brunt of ski edge and boot-buckle wear and benefit from early repair with a technical patch.
Wipe the YKK® AquaGuard® side zips with a damp cloth after wet or snowy days to remove salt and grime — debris buildup can degrade the zipper coating and the AquaGuard® water-repellent treatment.
Test the self-equalizing suspender cam mechanism periodically for smooth operation — wipe down the cam and the spring with a dry cloth, and apply a small amount of silicone spray lubricant if the cam starts to stick or fail to lock.
Hang the bib on a wide hanger to dry fully between uses. Store hanging or loosely folded in a cool, dry, well-ventilated area — avoid long-term compression in a stuff sack, which can damage the GORE-TEX® Pro membrane, the seam tape, and the suspender cam mechanism.
Avoid prolonged storage in damp or humid conditions — can lead to mildew and odor buildup in the upper bib lining and the body lining.
