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LEATT 2026 MTB | FEEL LIKE RIDING?

Bib Liner MTB 4.0

Bib Liner MTB 4.0

Pro-level bib liner with all-day support and built-in storage.
SKU: 5022080710
$142.00
Minus Plus
More than 10 in stock

Free shipping on orders over $99.
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Description

The Bib Liner 4.0 is built for big days and aggressive enduro riding. Worn under any Leatt short or pant, it delivers pro-level comfort, moisture management, and on-body storage—right where you need it. The ultra-breathable, bluesign® approved fabric wicks sweat and dries fast to keep you cool. A premium Italian Elastic Interface chamois supports up to 7 hours of ride time, while four cargo pockets and a dedicated hydration bladder sleeve give you space for tools, snacks, and more. A unique fly opening makes for quick and easy nature breaks. With a skin-tight fit and above-the-knee cut for knee guard compatibility, the Bib Liner 4.0 is your foundation for high-performance days on the bike.

Features

FIT: Skin fit • Above knee cut for compatibility with knee guards • Low tension leg gripper
FABRIC: AIR-MAPPING SYSTEM with X-Flow m oisture wicking fabric • Fast dry • Stretch Stitch thread for seam strength
SUSTAINABILITY: bluesign® APPROVED fabric (the gold standard for more sustainable textiles) • Plastic-free packaging
CHAMOIS: Italian Elastic Interface Chamois for all day intensive enduro riding • Durable quad density compound chamois for 7-hour active riding time
STORAGE: Mobile phone / storage leg pockets with silicone grip • 3 rear cargo pockets with silicone gripper • 1 cargo pocket for use with Hydrapack Horizontal Bladder
OTHER FEATURES: Unique fly opening
SIZES: XS-3XL (28-40’’)

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Technical Features

Customer Reviews

Based on 2 reviews
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theloamwolf.com |Robert Johnston
Cargo carrying, Hydration bladder integration, Comfortable chamois

Save for the slightly loose flank pockets out back, the Leatt bib liner MTB 4.0 has been a pleasurable addition to my ride apparel, offering a seemingly high quality chamois with some extremely useful cargo capacity to sustain mid-length rides without a pack.

https://theloamwolf.com/2023/01/06/review-leatt-bib-liner-mtb-4-0/

F
Fat mountain biker
Amazing

These thing are freaking amazing. I couldn’t feel anything in the pockets including the bladder. Every turn and every crash everything was still intact. It also has a pee hole a freaking pee hole. No one has that. I will for sure buy more than one pair.