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ION8 designs reusable drinkware for everyday use — insulated stainless steel bottles, kids' bottles and accessories. We're based in Scotland and sell across the UK, Europe and the US. Our flagship range, Primo, is built around one bottle body and three interchangeable lids. Every lid fits every size, so one bottle covers a commute, a training session or a day outdoors. Primo won a Red Dot Design Award in 2026, alongside a German Design Award and a King's Award. Triple-wall vacuum insulation keeps drinks hot or cold for up to 10 hours. Wide opening, dishwasher safe, leak-proof lids. Our mission is to design reusable products people want to use, and reduce avoidable waste in the process. Carbon neutral production is part of that, but so is durability — a bottle only replaces single-use if it lasts. Rated 4.6 on Trustpilot from over 60,000 reviews. Bottles from £29.99.