Dometic Grande Air Stay 390 S Awning 2026

The Dometic Grande Air Stay 390 is built to handle it all, whether you’re touring from site to site or settling in for a longer holiday. Constructed from Dometic’s innovative Weathershield™ Stay fabric, this awning offers the perfect blend of strength, breathability, and weather protection. The hybrid polypropylene and polycotton material is easy to clean, highly durable, and designed to perform in any condition — from hot summer days to heavy rain. Reinforced with ripstop polyester threads and treated for enhanced waterproofing, the 280 g/m fabric resists tearing and wear, while Dometic’s dope-dyeing process ensures long-lasting colour with reduced environmental impact and minimal UV fading.

Versatile and adaptable, the Grande Air Stay 390 supports a wide range of optional accessories, including annexes, extensions, carpets, and footprints, allowing you to customise your setup to suit your needs. Available in a 390 cm width and ‘S’ height (235–265 cm), it fits most caravans and smaller motorhomes perfectly. For even more space, left-hand and right-hand extensions are available in matching Weathershield™ Stay fabric — ideal for extra living or sleeping areas.

Dometic has also refined every detail of the Grande Air Stay 390 to enhance comfort and usability. Signature features such as the Dual-Pitch™ Roof System, Single Point Inflation, Apex roof vents, dual kador beading, and reversible door panels make setup and daily use effortless. New for this season are modernised window designs, upgraded curtains and gliders, and an adjustable Height Baffle that ensures a precise fit with reduced excess fabric.

Combining premium materials, innovative design, and touring versatility, the Dometic Grande Air Stay 390 redefines comfort and practicality — making every trip feel like home.

Technical Specification

Features

• Single Point Inflation Air Frame provides an easy setup up all from one location
• Tube-specific deflation points reduce trapped air, keep packing away simply
• All-new UV-resistant & highly waterproof Weathershield™ Stay ripstop polycotton 7 Polypropylene fabric
• Weathershield™ Stay fabric tested to withstand 200l/hr/m², exceeding London's average 70l/hr in its wettest month
• Large PVC window panels bridge the indoors and outdoors during the day and the night
• The multi-height attachment system allows for precise vehicle fitment
• All panels are removable to lower the pull-through weight and keep pack weights manageable
• Side panels can be swapped to change the window panel positions if required
• Both 7mm (typical rail) and 5mm (wind-out rail) kador beading allow the awning to attach to anything
• Apex vents located at each end of the awning provide a high-level roof vent, increasing overall air flow
• Ultra-clear PVC windows provide a clear view out while staying durable against the elements
• Updated traditional internal blinds are soft to the touch while providing great daylight shielding
• New Easy-Slide curtain tracks reduce snagging and lead to a better experience overall
• A Draught Skirt is included with an awning
• Mesh windows on side panels help increase ventilation without letting any insects in
• Dual-Pitch™ Roof System increases head height and reduces rainwater pooling
• Quickpitch™ Guying System for strong and simple pitching
• SabreLink™ Ready – pre-sewn in Velcro tabs for additional lighting
• Limpet® ready – pre-punched holes ready to attach limpets
• AccessoryTrack™ along the length of the caravan for optional extras
• Regulator pegging tabs – to ensure the awning remains the correct shape
• UV Protection – UPF50+ rated
• Adjustable Pegging Ladders – for pegging on uneven ground
• Veranda Pole Compatible
• Optional Side Extensions & Sun Wings available
• Optional Annexes & Conservatory available
• A wide range of add-on extras to tailor your awning to your needs
• Pegs, Pump & Carry bag included
• Hardwearing Touring Awning – This awning is designed for touring use; it is not designed for static or long-term seasonal pitching as extensive exposure to UV light will cause accelerated fabric degradation.