Arbortec AT4040 Breatheflex Chainsaw Trousers - Design C Class 2 Black/Lime
The Arbortec AT4040 Breatheflex Chainsaw Trousers deliver high-performance protection for professional chainsaw users who demand exceptional comfort, mobility and safety. Built with a multi-layered Class 2 chainsaw shield system and high-tenacity polymer fibres, these trousers offer a higher level of protection than standard Class 1 garments while remaining lightweight and flexible, certified to EN 381-5 Class 2 (24 m/s) Design C.
The Kevlar®-reinforced stretch crotch ensures excellent tear resistance and unrestricted movement when climbing, while the Climasphere breathable fabric system provides outstanding ventilation for all-day comfort. The outer shell is abrasion and snag resistant, essential for navigating dense canopies and ground-level brush. With six-way stretch mobility and high-visibility reflective decals, the AT4040 is built for serious professionals working in demanding environments.
Key Features & Benefits
- Design C chainsaw protection (full front & rear coverage)
- EN 381-5 Class 2 (24 m/s) certified
- Multi-layered chainsaw shield system (lightest stalling system on the market)
- Climasphere breathable shell for optimal temperature control
- Six-way stretch fabric for exceptional climbing mobility
- Kevlar®-reinforced stretch crotch for strength and flexibility
- Knee-to-ankle Kevlar® abrasion-resistant reinforcement
- Reinforced seams in high-tension areas for long-term durability
- YKK heavy-duty zips on fly and pockets
- Downward-facing pocket zips for harness compatibility
- Reinforced ankle lining to reduce wear from boot hooks
- Hi-Vis reflective decals for improved low-light safety
- Cargo & phone pockets with double fold-over dust-proof flaps
- Elasticated boot-lace fastener to reduce sawdust ingress
Technical Details
Why Choose the AT4040 Class 2?
Arbortec has built its reputation specifically around arborist workwear developed with climbing professionals, and Class 2 (24 m/s) is worth the step up from Class 1 if you're regularly in higher-risk cutting situations. Choose full Design C coverage over Design A if you move around the trunk and branches during climbing work, where front-only protection leaves the rear leg exposed.
Compare AT4040 C Class 2 vs AT4050 C Class 1 vs AT4060 A Class 1
| Model | Saw Protection | Protection Class | Best For |
| AT4040 C (this model) | Full Type C | Class 2 (24 m/s) | Highest-risk cutting, full leg coverage |
| AT4050 C | Full Type C | Class 1 (20 m/s) | Full coverage at standard protection level |
| AT4060 A | Front only (Type A) | Class 1 (20 m/s) | Maximum ventilation and mobility |
Certified Protection Explained
EN 381-5 Class 2 (24 m/s) Design C means these trousers have passed standardised chainsaw contact testing at a higher chain speed than Class 1, with certified cut protection covering the full leg circumference. EN 381-5 is gradually being superseded by EN ISO 11393, the newer international equivalent — current Arbortec stock is certified and labelled to EN 381-5, which remains valid and widely accepted across UK forestry sites.
Also Known As
Also searched for as: Arbortec AT4040, Breatheflex Class 2 Design C, Arbortec Black Lime trousers, Class 2 chainsaw trousers.
FAQs
What saw protection level do the AT4040 trousers offer?
They are EN 381-5 Class 2 (24 m/s) Design C, offering full leg protection and a higher cut-resistance rating than Class 1 trousers.
Are these trousers suitable for climbing?
Yes, Kevlar® stretch panels, six-way stretch fabric and lightweight construction make them ideal for climbing and canopy movement.
Are they breathable?
Very. The Climasphere system helps regulate temperature during long working days.
Do the pockets prevent sawdust ingress?
Yes, double fold-over flaps on cargo and phone pockets keep out dust and chips.
Do they include reflective accents?
Yes, Hi-Vis reflective decals improve visibility in low-light conditions.
