SIR SAFETY Polytech Stretch WORK TROUSERS | Arc Flash

Size	Height (A)	Chest (B)	Waist (C)
XXSNL 42 / BE 36	154–158	86–90	74–78
XSNL 44 / BE 38	158–162	90–94	78–82
SNL 46 / BE 40	162–166	94–98	82–86
MNL 48 / BE 42	166–170	98–102	86–90
M+NL 50 / BE 44	170–174	102–106	90–94
LNL 52 / BE 46	174–178	106–110	94–98
XLNL 54 / BE 48	178–182	110–114	98–102
XL+NL 56 / BE 50	182–186	114–118	102–106
2XLNL 58 / BE 52	186–190	118–122	106–110
2XL+NL 60 / BE 54	190–194	122–126	110–114
3XLNL 62 / BE 56	194–198	126–130	114–118
3XL+NL 64 / BE 58	198–204	130–134	118–122

Size	Height	Chest	Waist
XS	148–156	84–90	72–78
S	156–164	90–96	78–84
M	164–172	96–102	84–90
L	172–180	102–108	90–96
XL	180–188	108–114	96–102
2XL	188–196	114–120	102–108
3XL	196–204	120–126	108–114

Size	Height	Chest
XS	148–156	84–90
S	156–164	90–96
M	164–172	96–102
L	172–180	102–108
XL	180–188	108–114
2XL	188–196	114–120
3XL	196–204	120–126

Size	Height	Chest
XS	148–156	78–84
S	156–164	84–90
M	164–172	90–96
L	172–180	96–102
XL	180–188	102–108
2XL	188–196	108–114
3XL	196–204	114–120

Size	Height	Chest
XS	148–156	84–90
S	156–164	90–96
M	164–172	96–102
L	172–180	102–108
XL	180–188	108–114
2XL	188–196	114–120
3XL	196–204	120–126

Size	Height	Chest
M	164–172	96–104
L	172–180	104–112
XL	180–188	112–118
2XL	188–196	118–126
3XL	196–204	126–132

Size (EU)	Height	Chest	Waist
XS (36)	154–172	78–84	60–65
S (38)	154–172	82–88	64–69
M (40)	158–166	86–92	68–73
M+ (42)	158–176	90–96	72–77
L (44)	162–180	94–100	76–81
XL (46)	162–180	98–104	80–85
XL+ (48)	166–184	102–108	84–89
XXL (50)	170–188	106–112	88–93
XXL+ (52)	170–188	110–116	92–97
XXXL (54)	170–188	114–120	96–101
XXXL+ (56)	170–188	118–124	100–105

Description

SIR SAFETY OPERATION POLYTECH STRETCH Work Trousers – Arc Flash Protection

Experience unparalleled protection and comfort with the SIR SAFETY OPERATION POLYTECH STRETCH Work Trousers, specially designed for men working in high-risk environments. These work trousers combine advanced fire-retardant fabrics and ergonomic construction to offer multidimensional safety against flames, heat, arc flashes, liquid chemicals, and static electricity. Crafted from a blend of cotton, polyester, elastane, and conductive fibers, they balance durability with breathability and stretch, ensuring maximum freedom of movement. Enhanced with functional pockets, reinforced seams, and a modern design, these trousers are essential for professionals who demand the highest level of protection and practicality.

Key Features

Multifunctional Safety: Protects against flames, convective and radiant heat, arc flash, antistatic hazards, and chemical splashes.
Premium Fabric: Made from twill blend (74% cotton, 22% polyester, 3% elastan, 1% conductive fiber; 280 g/m²) for strength, comfort, and breathability.
Ergonomic Fit: Pre-shaped legs and a gusseted crotch insert for enhanced mobility and a comfortable fit.
Functional Storage: Two side pockets, 3D technical leg pocket, tape measure pocket, and back pocket—all with secure Velcro and flaps.
Knee Protection: Accommodates KGUARD MC4913 knee pads in reinforced knee pad pockets.
Durability: Reinforced bartacks and double stitching in stress areas ensure longevity under intensive use.
High Visibility Elements: Contrasting yellow inserts improve safety in low-light environments.
Elasticated Waistband: Allows for maximum flexibility without constriction.
Must be worn with the matching jacket for full protection.

Certification

This garment is certified to multiple European safety standards:

EN ISO 11612 (A1+A2 B1 C1 E3 F1): Provides protection against heat and flames, including limited flame spread, convective heat, radiant heat, and contact heat. E3 means high molten iron splash resistance, and F1 means the best contact heat protection.
EN ISO 11611 (A1+A2) Class 1: Specifically designed for welding and allied processes, with Class 1 providing protection against less hazardous welding techniques and situations.
EN 61482-2 APC 1: Protects against thermal hazards of an electric arc; APC 1 is suitable for arc current up to 4kA.
EN 13034 Type 6: Limited protection against liquid chemical splashes, suitable for potential exposure to light sprays and splashes.
EN 1149-5: Ensures antistatic properties, reducing the risk of electrostatic discharge.

Manufactured in compliance with Regulation (EU) 2016/425 for personal protective equipment.

Specifications Table

Collection	Trousers
Flame Retardant	Yes
Chemical Resistant	Yes
High Visibility	No
Standards	EN ISO 11612, EN ISO 11611, EN 61482, EN 13034, EN 1149-5
Seasonality	All-Season
Color	Blue, Yellow
Gender	Men
Material Weight	280 g/m²
Workwear Options	Antistatic, Flame Retardant, Heat Resistant, Including Knee Pocket
Material	Cotton, Polyester, Elastane
Material Description	Twill 74% cotton, 22% polyester, 3% elastan, 1% conductive fibre; contrasting twill 75% cotton, 24% polyester, 1% conductive fibre.
Type	Standard Work Pants
Trousers Length	Long

Instructions and Care

Read all instructions before use to ensure correct and safe application.
Store in a cool, dry location, away from direct sunlight and heat sources.
Visually inspect before each use; replace garment immediately if damaged or soiled.
Use as part of a complete PPE system—combine with a matching jacket and supplementary PPE for full-body protection.
Regularly fasten all closures to maintain safety features.
Follow the manufacturer's washing and care instructions to maintain protective properties.

Specifications

Certification EN ISO 11612 (Protection against heat and flames) EN ISO 11611 (Welding protection) EN 61482 (Arc flash protection) EN 13034 (Limited protection against liquid chemicals) EN 1149-5 (Antistatic properties) Sizes XS – 3XL Material Cotton, Polyester, Elastane Season All-Season

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SIR SAFETY OPERATION POLYTECH STRETCH Work Trousers MEN - Arc Flash Protection

Sir Safety Size Guide

How to Measure

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SIR SAFETY Women – Size Table (cm)

SIR SAFETY OPERATION POLYTECH STRETCH Work Trousers – Arc Flash Protection

Key Features

Certification

Specifications Table

Instructions and Care