Delta INS Shell Jacket

The Delta INS Shell Jacket is updated to provide superior warmth and ultimate protection for daily use in cold weather conditions. Made from 100% recycled face fabrics, our highest-specification waterproof-breathable technology Barrier CT Pro™ delivers exceptional waterproofing (50.000 mm+), wind resistance, and breathable comfort.

Featherless Sorona® 80g 37% biobased renewable insulation provides you with warmth without the bulk.

We carefully selected a wide range of features to help realise this. Key features include, but are not limited to: 5 essential pockets, SBS waterproof zippers, helmet-compatible adjustable hood, Polygiene StayFresh™ anti-odour treatment. And armpit ventilation zippers.

Technical Features

• Main fabric: 3-layer Fabric, DWR-treated, 100% Recycled face fabrics, 100% polyester
• Waterproofness: 50.000mm+ Barrier CT Pro™
• Breathability: >20.000 g/m2/24 hrs
• Fabric denier: 75Dx75D
• Product weight: 900 g
• Taped seams: for waterproof finishing
• Insulation: Featherless Sorona® 80g 37% biobased renewable

Pockets

• Two hand pockets
• Sleeve pocket for RFID pass
• Internal mesh pocket
• Internal zip pocket

Adjustable Hood

• Helmet compatible
• Easy adjustable at 3 places

Zippers

• Waterproof SBS zippers are used on all zippers
• Pit zips for ventilation

Anti-odor technology

• Polygiene StayFresh™ technology to minimize odor

Safety features

• Recco® Rescue System for emergency situations

Product fit & layering

• Fit: Regular fit with room for 2 layers underneath
• Cuffs: Adjustable cuffs with Velcro® adjustments

Measurements

• Center back length men’s: XS 74, S 76 cm, M 78 cm, L 80 cm, XL 83 cm, XXL 86 cm.
• Center back length women’s: XS 70 cm, S 72 cm, M 74 cm, L 76 cm, XL 79 cm, XXL 82 cm.

We believe great products start with strong values. That’s why our manufacturing emphasizes transparency, long-term partnerships, and a people-first approach. We prioritize fair working conditions and sustainable practices, backed by our B-Corp certification.

We choose manufacturing partners based on verified social audits, assessing fair wages, safe conditions, reasonable hours, and workers’ rights. This ensures our products meet high ethical standards.

By building lasting relationships with trusted suppliers, we maintain control over our supply chain and work only with those who share our values—delivering outdoor-ready products with minimal environmental impact.

Care Instructions:

Close all fastenings before washing. Use a gentle cycle at 30°C. Avoid bleach, chemicals, and fabric softeners. Tumble dry on low heat and iron at a low temperature if needed.

Our technical fabrics are designed to perform; fabric softeners interfere with their breathability and water-repellent properties, so skip them.

For insulated pieces, tumble dry separately on low heat with a few tennis balls to help restore the loft. No dryer? Give the garment a good shake and gently redistribute the filling by hand.

Product warranty & repais:

We offer a 3-year warranty on all our Cortazu items. We also offer a repair service for your garments. For more information on warranty and repairs, click here.