0.4L Stainless Steel Isothermal Hiking and Camping Flask 900, quick-opening cap.

We’ve tested this flask in the lab according to standard EN 12546-1, at an ambient temperature of 20°C while filled to capacity. The time it takes to drop from 95°C to 50°C (drinking temperature considered warm enough to drink) is over 23 hours.

This isothermal bottle’s double stainless steel wall with vacuum effect prevents heat conduction and convection. A thin layer of copper reduces thermal exchanges by radiation.A few tips to improve thermal insulation: fill your bottle with hot water for 5 minutes, replace the water with your hot liquids, then close. The fuller the bottle, the better the heat retention.Please note: the flask is very insulating, so liquids will remain hot for a long time.

You can open the quick-release cap with one hand by lifting the white latch. You close it by pressing the latch down or by screwing the cup back on.A removable tea filter is attached to the cap. Simply pull on it to separate it from the cap. Be aware that if you remove the filter after immersing it in hot water, it may be boiling hot to touch.The cup screws onto the bottle, making it easy to carry around, and is made from double-walled stainless steel with no air space.

- Wash and rinse the entire product 3 times with clean water before first use.For optimal washing and drying:1. Separate all parts;2. Hand wash them with soapy water (with a fine brush to get into the nooks and crannies). The bottle is dishwasher-safe but do not put the cap in;3. Rinse them in clean water;4. Leave to dry separately, the cap should remain open when drying.

Our products and materials meet the food contact standards in force. They do not contain Bisphenol A (BPA) in accordance with the French regulations in force. We have chosen to use 18/8 (304) stainless steel for the flask's body, recognised for its food safety and for the top, a heat and shock resistant polypropylene.

Volume: 0.4 litreAvailable in several formats: 0.4L (reference 8641548) | 0.7L (reference 8641550) | 1L (reference 8750954) | 1.5L (reference 8901746)Total dimensions: Ø 7cm x 20.3cm, diameter of bottle body Ø 6.5cmTotal weight: 320 gramsCap: 28g, Ø 4.5cm x 6.2cmFilter: 12g, Ø 2.8cm x 7.3cmCup: 62g, Ø 6.5cm x 4.7cm

Our products will join you on your mountain walks. As you gradually progress, they will age, certain parts can get worn, broken or lost. To help repair your flasks, our caps are available separately.

Our Quechua global design centre is based in Passy, at the foot of Mont-Blanc in Haute Savoie. This location makes it a real meeting place for our teams (designers, product managers, engineers, etc.) and outdoor sports enthusiasts. A great asset for designing your mountain walking products and providing you with all our expertise.