Arbortec AT4010 Breatheflex Chainsaw Trousers - Design A Class 1

The Arbortec AT4010 Breatheflex Chainsaw Trousers are designed for professional arborists and forestry workers who require lightweight comfort, exceptional mobility and dependable chainsaw protection for everyday tree work. Constructed from high-tenacity polymer fabrics with strategically placed Kevlar® reinforcement, these trousers deliver the durability needed for climbing, pruning and ground saw use while maintaining excellent breathability, certified to EN 381-5 Class 1 (20 m/s) Design A.

Available in Black, Black/Lime, Olive, Black/Orange, Red and High Visibility Orange, sized XS to 2XL with Short/Regular/Long leg options on select colourways, it's in stock at Gustharts as an authorised Arbortec dealer, with free UK delivery on this order.

Featuring the highly breathable Climasphere outer shell, the AT4010 allows airflow while remaining resistant to abrasion, snags and contact with rough bark or branches. A Kevlar®-reinforced stretch crotch improves tear resistance and provides unrestricted movement during climbing, while the six-way stretch fabric ensures exceptional flexibility for canopy work.

Key Features & Benefits

• Design A chainsaw protection — front of legs only
• Certified to EN 381-5 Class 1 (20 m/s)
• Climasphere breathable outer shell for ventilation and abrasion resistance
• Kevlar® reinforced crotch for flexibility and tear resistance
• Kevlar® reinforcement at lower legs for high-wear areas
• Six-way stretch fabric for maximum mobility while climbing
• Reinforced seams in high-tension zones
• Heavy-duty YKK zip system on fly and pockets
• Downward-facing pocket zips for harness compatibility
• Reinforced ankle lining to reduce wear from boot hooks
• Cargo and phone pockets with double fold-over dust-blocking flaps
• Elasticated boot-lace hook to keep trousers in place

Technical Details

Why Choose the AT4010?

Arbortec has built its reputation specifically around arborist workwear developed with climbing professionals, and the AT4010's six-way stretch fabric and Kevlar® crotch reinforcement genuinely prioritise mobility over the heavier protection of Type C designs — the right trade-off if you're primarily climbing rather than moving around the trunk. If you need full front-and-rear coverage instead, the Breatheflex Chainsaw Trousers Type C Class 1 is the fuller-coverage alternative; for extra rear ventilation with the same front protection level, see the Breatheflex Pro Type A Class 1.

Certified Protection Explained

EN 381-5 is the European standard for chainsaw protective clothing legs, testing cut resistance against chainsaw contact. Class 1 means the trousers are rated for chain speeds up to 20 m/s, and Design A confirms front-leg-only coverage — lighter and more breathable than full Type C protection.

Pairs Well With

Complete your kit with a certified chainsaw helmet and chainsaw boots to match protection levels.

Also Known As

Also searched for as: Arbortec AT4010, Breatheflex Design A trousers, Kevlar chainsaw trousers, EN 381-5 Class 1 Type A trousers.

FAQs

UK Delivery

Fast, reliable delivery from our UK warehouse.

• FREE UK Delivery on orders over £75 +VAT
  Estimated delivery: 2–4 working days

• UK Standard Delivery from £3.60 + VAT
  Estimated delivery: 2–4 working days

• Next Working Day Delivery – £6.00 + VAT
  
  Order before 3:00pm (Monday–Friday) for next working day delivery
  

All UK orders are dispatched Monday–Friday and sent via a tracked courier service.