Velilla 103030X ARROW 4-Xtreme trousers: technical twill that stretches in four directions
4-Xtreme is Velilla's technical range, not a specific fabric: it groups garments built with high-performance fibres. In this model the twill is 100% elastomultiester (EME) at 280 g/m², with 4-way stretch, shape memory and UPF 50+ sun protection certified to EN 13758-2. On top of that come knees with reinforced stitching, triple safety stitching and let-down hems.
✅ Features
100% EME twill at 280 g/m²: elastomultiester is a polyester with elastic fibre; it provides stretch without adding elastane and without losing strength.
4-way stretch and shape memory: gives in every direction and recovers its shape.
UPF 50+ to EN 13758-2: the fabric blocks more than 98% of ultraviolet radiation.
Knees with reinforced stitching and triple safety stitching on the main seams.
Crease-resistant and ultra-tough: designed for intensive daily use.
Multi-pocket: zipped security pocket, two slanted front pockets, side pockets with flap and hook-and-loop fastening, multifunction side pocket and rear patch pockets.
Let-down hems and wide belt loops with an ergonomic rear loop.
Eco-design in the garment's conception.
👷 Suitable for
Technical service and installations involving lots of movement.
Outdoor work with prolonged sun exposure.
Industrial maintenance and automotive.
Telecommunications, energy and specialist construction.
Profiles needing an everyday garment that lasts and doesn't crease.
📋 Technical data
Velilla reference: 103030X
Range: 4-Xtreme (Velilla's technical line, not a fabric type)
Composition: twill, 100% elastomultiester (EME)
Fabric weight: 280 g/m²
Certification: EN 13758-2, UPF 50+
Fit: slim fit
Closure: centre zip and custom button
Waistband: elasticated at the back, wide belt loops and ergonomic rear loop
Seams: triple safety stitching; reinforced knees
Hems: let-down
Sizes: S, M, L, XL, 2XL and 3XL
Colours: black, navy blue, petrol blue, dark grey, lead green and sand beige
🧺 Care
Machine wash at low temperature.
No fabric softener or bleach: they damage the elastic fibre of the EME.
Air dry; avoid hot tumble drying.
Rarely needs ironing: the fabric is crease-resistant.
💡 Tip: the difference between these and the 103035X isn't the price, it's the certificate. Both are 4-Xtreme and both have UPF 50+, but only the 103035X is made with GRS-certified recycled nylon. If the tender doesn't award points for recycled material, the ARROW 103030X performs just as well and, at 280 g/m², has more body; if the tender does award points for it, the GRS one is what provides the evidence.
Frequently Asked Questions
What is 4-Xtreme?
It is Velilla's technical range, not a fabric type. It groups garments built with high-performance fibres.
What is EME?
Elastomultiester, a polyester with elastic fibre that provides stretch without the need for elastane.
What does UPF 50+ mean?
That the fabric blocks more than 98% of ultraviolet radiation, certified to EN 13758-2.
How does it differ from the 103035X?
The 103035X is 4-Xtreme Max and is made with GRS-certified recycled nylon; the 103030X has no recycled material certification but a higher fabric weight, 280 g/m2.
