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The Helly Hansen Sirdal Insulator Jacket uses ECOLoft™ Air SR synthetic insulation for reliable warmth that doesn't quit when moisture gets involved, which is a useful quality for any piece you're planning to work hard in the mountains. A clean, unfussy silhouette makes it easy to layer under a shell or wear on its own.
30D Nylon Ripstop Down Proof Fabric – 100% Polyamide
bluesign® Approved
PFC-Free DWR Treatment
Recycled ECOLoft™ Air SR Insulation (550 Fill-Power) – A smart synthetic insulation that avoids clumping when wet, unlike traditional down fill.
100% Polyamide
Relaxed Fit
Two Hand Pockets with YKK® Zipper
Two Inner Dump Pockets
HH® Printed Logo
Care Instructions – Close zippers before washing. Do not use fabric softener. Some fading may occur on bright colours. Tumble dry until completely dry. Tumble dry with dryer balls. Wash dark colours separately.
| Warmth | Description | Ideal Conditions |
| Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
| Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
| Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
| Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |