K-Way Umbert Stretch 2Layers Shirt - Green - XXL

The Umbert jacket features an insulating membrane but is primarily designed for transitional climates. For very cold weather, layering with a warmer insulating jacket or fleece underneath would be recommended.

Waterproofness can be tested by observing how water beads up on the fabric. If water saturates the fabric and darkens it, the DWR treatment may need reapplying. Also, check if any seams show signs of water leakage.

The jacket has a regular fit. While you can layer a thinner fleece or sweater, a very thick sweater might make the fit too snug and restrict movement.

The '2Layers' construction refers to the outer fabric and the internal membrane being bonded together. This design is common in waterproof and breathable outerwear.

The frequency depends on usage and care. Typically, re-waterproofing is recommended every season or when you notice water no longer beads effectively on the surface.

A 10,000 mm water column rating means the fabric can withstand the pressure of 10,000 millimeters of water before it starts to leak. This provides good protection against moderate rain.

Yes, the two chest flap pockets feature snap button fastenings, offering secure storage for smaller items.

Ensure all seams are properly taped and intact. If damage is visible, professional repair may be needed. Reapply a seam sealant if necessary.

This can indicate reduced breathability. Ensure the garment is clean, as dirt and oils can clog the membrane pores. Wash according to care instructions and consider a technical wash product. Ensure the rear vent is open for maximum airflow.

The Durable Water Repellent (DWR) coating needs reapplication over time. Wash the jacket to remove dirt, then apply a PFC-free DWR spray or wash-in treatment according to the product's instructions.

Loose buttons can often be re-secured by hand-stitching. For missing buttons, contact customer support for potential replacement parts or consult a tailor.