Material and Craftsmanship: The outer layer is made of black heat-absorbing PVC material with a light absorption rate of 90%. After being exposed to sunlight for 3 hours, the water temperature can reach 45C (when the ambient temperature is 25C); The inner layer is made of food-grade PE material, resistant to high and low temperatures (-20C to 60C), ensuring water quality safety and no odour, and can be directly used for personal hygiene. Structural Innovation: Transparent temperature display window on the top for real-time water temperature monitoring to prevent burns; 3-layer composite insulation layer maintains water temperature for 2 hours without loss. Functional Configuration: All-in-one outdoor shower solution Water Storage System: 20-litre large-capacity water tank with a leak-proof screw cap, 10cm diameter filling port, compatible with taps or mineral water bottles for direct filling; Shower system: Removable showerhead with adjustable water flow, providing up to 8 minutes of continuous water flow; 1.5-metre-long PVC hose, designed for adult use at an appropriate hanging height. Scene Adaptability: Multi-scene outdoor water solution Camping scene: Campsite showering, dishwashing, black exterior blends with natural surroundings for high concealment; Beach scene: Foot rinsing to remove sand, showering while changing swimwear, paired with a sunshade curtain (sold separately) to create a temporary changing room; Hiking scene: Lightweight design suitable for short-distance trekking, quick rinse during midday rest to stay fresh.