What is Pas Normal Studios’ Mechanism collection?

Mechanism is Pas Normal Studios’ race-fit collection merging performance and contemporary design. With carefully selected technical fabrics and Pas Normal Studios’ signature silhouette matching an aggressive position on the bike. Optimally suited to fast-paced training, intervals and racing. Unsurpassable performance for the days that matter the most.

How do Pas Normal Studios men’s sizes work?

Pas Normal Studios sizes its men’s cycling clothing by body measurements: chest around the fullest part, waist around the slimmest, plus hip and thigh, all in the size guide on this page (for example, M is 96–101 cm chest and 82–87 cm waist). The same chart covers PNS jerseys, bibs and jackets. PNS’s race-fit lines are cut close to the body for the riding position.

How should I care for Pas Normal Studios cycling clothing?

PNS recommends a pre-wash before first use, then washing inside out with zips closed, on a gentle 30 °C cycle with low spin and a non-bio detergent. No bleach, fabric softener, tumble dryer or hot iron: let it air dry, and don’t mix light and dark colours. The garment label is the final reference.

PAS NORMAL STUDIOS RTN Mechanism Bib Shorts

Khaki Green

$248.00

~~$248.00~~ $248.00

TAX FREE PRICE.
DUTIES AND CUSTOMS NOT INCLUDED FOR United States.

+3 units in stock

The essentials

Best for

Racing
Fast training

PAS NORMAL STUDIOS RTN Mechanism Bib Shorts - Khaki Green

Technologies

Rated by PAS NORMAL STUDIOS

Temperature

-10 °C0 °C15 °C+30 °C

The bibs are suited for rides in mild to high temperatures. Combine with leg warmers on colder rides.

Intensity

LowHigh

The bibs are optimised for high intensity training rides and races.

Fit

LooseTight

The bibs has a tight, aerodynamic fit - ideal for high-intensity road riding and racing.

Breathability

5/6

Breathability is defined as the ability of a fabric to allow perspiration. The bibs offers great breathability properties and is optimised for moisture wicking.

Insulation

1/6

Insulation is defined as the ability of a fabric to keep you warm and protect you from the cold. The bibs are made for high-intensity riding in mild to warm temperatures. Therefore, it offers poor insulation properties.

Wind protection

1/6

Wind Protection is defined as the ability of a product to prevent wind from penetrating the fabrics. The bibs are made from lightweight fabrics that offers limited wind protection.

Water protection

1/6

Water protection is defined by the products ability to keep you dry. The bibs are made from lightweight fabrics that offers limited water protection.

Specifications

Fabric	Material: 82% Polyester, 18% Elastane
Weight (size M, PNS)	169 g
Season	Summer

Tight fit

The bibs has a tight, aerodynamic fit - ideal for high-intensity road riding and racing.

Elastic Grippers

All grippers have been fitted with soft, fully-dyed elastics that deliver the truest colour. The elastics also feature Pas Normal Studios’ signature silicone gripping pattern, keeping the bibs in an optimal position to improve your aerodynamic silhouette.

Straps

The straps have been updated with new a mesh structure that matches the back mesh fabric of the bibs. A new and more breathable fabric that also allows for a bit more stretch.

Chamois

The four-layer chamois pad has been specifically designed to ensure lasting performance and comfort. The quick-drying antimicrobial membranes ensure you stay cool and fresh at your critical contact point with the bike, reducing friction and preventing the buildup of humidity.

Fabric

Constructed from premium compressive and durable textiles, these fully-dyed fabrics deliver an outstanding visual aesthetic that is enhanced by a subtle tone-in-tone finish with Pas Normal Studios’ proprietary detailed textile definitions.

Front Mesh

The front mesh of the bibs offers the same breathable and durable properties as the back mesh of the bibs.

Chamois Stitching

The zigzag in-seam chamois stitching reduces friction between the seam and saddle a feature that enhances durability.

PAS NORMAL STUDIOS RTN Mechanism Bib Shorts - Khaki Green

Compare with

	PAS NORMAL STUDIOS RTN Mechanism Bib Shorts - Khaki GreenNew key enhancements to Pas Normal Studios’ signature Mechanism Bibs.	PAS NORMAL STUDIOS Mechanism Bib Shorts 2025 - Navy Choose it for the Mechanism Bibs: Aerodynamic race fit.	PAS NORMAL STUDIOS Escapism Cargo Bibs - Dark Red Choose it for the Escapism Cargo Bibs: Race fit bibs.
Regular price	$248.00	$248.00	$267.00
Safety rating	—	—	—
Fabric	Material: 82% Polyester, 18% Elastane	82% Polyester, 18% Elastane	—
Weight (size M, PNS)	169 g	169 g	—
Season	Summer	Summer	Summer
Temperature (cool → hot)	4-6/6	4-6/6	4-6/6
Intensity (low → high)	5-6/6	5-6/6	3-5/6
Fit (loose → tight)	5-6/6	5-6/6	4-5/6
Breathability	5/6	5/6	4/6
Insulation	1/6	1/6	—
Wind protection	1/6	1/6	—
Water protection	1/6	1/6	3/6
Sizes	—	XXS–XXL	XXS–XXL

PAS NORMAL STUDIOS RTN Mechanism Bib Shorts - Khaki Green

Size guide

Size	Chest (cm)	Chest (in)	Waist (cm)	Waist (in)	Hip (cm)	Hip (in)	Thigh (cm)	Thigh (in)
XXS	80–86	31–34	67–72	26–28	80–85	31–33	48–51	19–20
XS	86–91	34–36	72–77	28–30	85–90	33–35	51–53	20–21
S	91–96	36–38	77–82	30–32	90–95	35–37	53–56	21–22
M	96–101	38–40	82–87	32–34	95–100	37–39	56–59	22–23
L	101–106	40–42	87–93	34–37	100–105	39–41	59–61	23–24
XL	106–111	42–44	93–99	37–39	105–109	41–43	61–63	24–25
XXL	111–118	44–46	99–104	39–41	109–114	43–45	63–66	25–26

Pas Normal Studios sizes by body measurements: chest around the fullest part, waist around the slimmest. PNS jerseys have a shortened front and an extended back for the riding position; PNS’s size guide shows a 188 cm model in M.

How to measure

Chest: around the fullest part, under the arms. Waist: around your natural waistline. Hips: around the fullest part. Keep the tape snug but not tight.

SizeSelect your size X-SMALL SMALL MEDIUM LARGE X-LARGE

Description

New key enhancements to Pas Normal Studios’ signature Mechanism Bibs. Updated straps give extra stretch and breathability using a mesh-structured fabric. A higher front rise provides a more comfortable fit, and the new front mesh offers the same breathable and durable properties as the back mesh of the bibs. A new zigzag in-seam chamois stitching minimizes friction between the seam and saddle and provides higher durability. Constructed from compressive textiles with high elasticity, the Mechanism Bibs are fitted to match your optimal riding position without restricting mobility.