Mummy sleeping bag VAUDE Sioux 400 II XL — recycled polyester, 2350×850 mm, for users up to 205 cm

VAUDE Sioux 400 II XL is an extra-long mummy sleeping bag made from recycled polyester and synthetic Sensofiber insulation. With overall length 2350 mm and shoulder width 850 mm, it is designed for users up to 205 cm and for two-season use (late spring to early fall). The single-layer synthetic fill provides breathability, quick drying and insulation even when damp. The body-hugging mummy cut, contoured hood and footbox concentrate warmth where it is needed, while a long, two-way zip that reaches the foot section can be opened for ventilation. The outer fabric is treated with a PFC-free Eco Finish for basic water repellency and dirt resistance, and both shell and fill are made from recycled polyester as part of VAUDE’s sustainability concept.

Advantages

The single-layer Sensofiber insulation offers low weight, easy care and reliable thermal performance for moderate conditions. The mummy shape and contoured hood improve thermal efficiency by reducing dead space and preserving body heat. Recycled PET materials reduce energy use and CO2 emissions in production and provide a durable, quick-drying outer fabric. The bag’s design includes practical features such as a long zip for ventilation, an inner pocket for small essentials and a compressible pack size for straightforward transport and storage.

Suitable for

• Camping and trekking in late spring to early autumn
• Multi-day hut-to-hut tours and backpacking with a focus on low weight
• Outdoor use where a long sleeping bag is required for taller users
• Nights under the open sky where quick-drying synthetic insulation is preferred

Key specifications

• Overall length: 2350 mm
• Shoulder width: 850 mm
• Suitable for users up to 205 cm
• Construction: single-layer synthetic fiber fill (Sensofiber Eco)
• Shape: mummy with contoured hood and footbox
• Season rating: 2-season (late spring to early fall)
• Outer fabric: recycled polyester with PFC-free Eco Finish
• Fill material: recycled polyester synthetic insulation (quick-drying, insulates when wet)
• Zip: long two-way zip down to foot section, double-slide and dividable for connecting
• Included: compression stuff sack

How to use

Use the sleeping bag directly inside a tent, bivy or under a tarp. Open the long two-way zip to regulate ventilation or to join with a compatible sleeping bag if needed. Pack the bag into the included compression sack when transporting to reduce volume. After use, air the bag and, if necessary, follow the manufacturer’s care instructions for machine or gentle washing to maintain loft and quick-drying properties.

Usage recommendations

For best performance, store the sleeping bag loosely in a dry place when not in use and avoid prolonged compression. If you expect damp conditions, allow the Sensofiber insulation to dry fully before packing; the synthetic fill retains insulating properties when wet but dries faster if given time to air out.