The Swiss company has over 100 years experience of making alumnium bottles and kitchenware, but it's only since the late 1990s though that they have focused almost entirely on making water bottles, (they do still produce the gas canisters for Primus and MSR stoves).

Backpacker magazine identified SIGG as producing the "world's toughest water bottle" when they fired golfballs at a range of bottles from a cannon. We love the quality and functionality of the bottles and the fact that they will stand up to the rigours of the wildest outdoor pursuits.

SIGG keep a consistent diameter head and thread system meaning that you can interchange bottles and tops. Even their new wide mouthed bottles come with adapters so that you can use the original sized caps.

What many consumers like about SIGG is that the bottles are 100% recyclable, and the inner enamel lining of the bottle is guaranteed to be both BPA free and does not transfer any taste to the contents of the bottle.

Bisphenol A (BPA) is used to make polycarbonate plastic and epoxy resins, which means that it can be present in all sorts of plastic food packaging and containers. It is an endocrine disruptor that can mimic the body's hormones, which it is thought may lead to health issues. Canada was the first country to ban the use of BPA in packaging.

Many bottles transfer an unpleasant taste to their contents, especially when they become warm, but SIGG's consumers universally report that there is no taste transfer whether they are filling the bottles with carbonated drinks, acidic fruit juices, sports drinks or water.

The bottles are leak-proof, the lining is crack resistant, and being made from aluminium makes them extremely lightweight.

The range in store includes:

	Wide Mouth: great if you want to add ice to keep a drink cool or mix up an electrolyte powder.
	Active Sports Tops: easy to to drink from in a hurry.
	Different Capacities: From 0.4 litres to a whopping 1.5 litres.