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TREWth Bib PRIMO - Extended

Rated 5.0 out of 5
Based on 1 review


Extending the fun.

Forget what the magazines show as the 'athletic body type'; anybody - and any body - has a world of explorations awaiting them in the backcountry. That's why, after months of rigorous development, prototyping, and fit testing, we're stoked to bring you our best-selling TREWth Bib in a wider range of extended sizes. 

Resort laps, touring, boot-packing...the TREWth Bibs are designed to handle it all, and keep the good times rolling from dawn 'til dusk. 

  • PNW 3L Primo Fabric woven with 100% recycled nylon
  • 20,000mm Waterproof/Breathable
  • Bluesign Certified
  • Non-insulated shell bib
  • Available in Short (30"), regular (32") and Tall (34") inseam lengths.
  • Transceiver pocket on right chest with 20mm d-ring
  • All zippered pockets have 15mm d-rings
  • Water-resistant construction
  • Fully-seam taped with 3L tape
  • Long side zipper with top opening for easy bathroom breaks
  • Water-resistant zips on all exposed openings
  • Top and bottom-opening side zips
  • Jacquard elastic straps with silicon gripper
  • Internal boot gaiters with booster strap accommodation
  • SuperFabricⓇ cuffs and kick patches
  • RECCO® reflector
  • 41 oz. (size 3XL)

The TREWth Bib PRIMO - Extended boasts our signature ‘modern freeride fit’ in extended sizing, which offers a relaxed style to give you plenty of room for layering underneath and full leg extension on all of those signature daffys you’re throwing.

Model info:

  • Greg (in Stargazer) is 6', 285lbs and wearing a 3XL - Regular for a relaxed fit
  • Ian (in Blackout + Ginger) is 5'9", 315lbs and wearing a 3XL - Regular for a slimmer fit

We highly recommend referencing our Size Guide (above the ADD TO CART button) and customer reviews, below, when choosing your size!

We do our best to process and ship all orders within 1-2 business days, and we offer free exchanges + easy returns within a 30-day window.

For more information, see: Shipping Page and Returns & Exchanges Page



Our highest level of waterproof protection with a 3L construction and 20,000mm rated membrane.

The Fit

The original modern freeride bib has a roomy fit throughout to allow for a variety of conditions and layers.


This membrane is rated at 20,000gr/m2 and well-placed vents make this bib a loyal companion both in and out of bounds.


Not quite indestructible, our PNW 3L material can withstand abuse. And then some.

average rating 5.0 out of 5
Based on 1 review
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100% of reviewers would recommend this product to a friend
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Rated 5 out of 5
Rated 5 out of 5
Review posted
Reviewed by JG, from United States
Ski or Board
Backcountry vs Resort
Primarily Resort
6ft 5″
Body Shape
Size Purchased
Rated 5 out of 5

Friggin' sweet!

1st day review: Freezing fog, moist chairs, spitting graupel. The Trewth Primo stayed dry and warm in moderately wet conditions. I'll have to report back after a super-wet 34 degrees-and-snowing day and a few days touring, but so far I'm super impressed with these bibs.

Big thank you to Trew for extended sizing in top-tier outerwear! I've been waiting forever for bibs that fit like a glove and I couldn't be more stoked that it was Trew who made it happen. Big folks rip (on snow, not just our pants) and we tour (and probably get sweatier than leaner people) so having a bomber bib that keeps me dry means so much more to me than you could imagine. Thank you!

Note: got XXXL Tall, but the review only has options through XXL.

I recommend this product
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs large
Rated 5 out of 5
Rated 5 out of 5
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