Cold nights in a van or on a pitch are a lot more manageable with the RidgeMonkey XL Hot Water Bottle. At 2 litres and 65.5cm long, the elongated tubular design gives you heat across a much wider area than a standard bottle — slides down the side of a sleeping bag, warms the full length of your back, or takes the edge off the cab before you turn in.
The 2mm natural rubber wall holds heat well into the night. The brushed polyester and polyurethane fleece cover is there from the start — no need to find something to wrap it in — and makes it safe to hold against skin without burning. Standard safety rules apply: fill to two-thirds max, expel the air before sealing, and avoid boiling water directly from the kettle.
Key Features

Extra-large 2 litre capacity — much more heat than a standard bottle
Elongated tubular shape covers a wider body area — back, neck, shoulders, or full sleeping bag length
2mm thick natural rubber wall for excellent heat retention
Soft brushed fleece cover (50% polyester / 50% polyurethane) included — no bare rubber contact
Anti-ageing rubber composite — built to last season after season
Great for pre-warming a sleeping bag before bed

Specs

Capacity: 2 litres
Length: approximately 655mm
Weight: approximately 550g
Bottle material: Natural rubber with anti-ageing composite
Cover material: 50% polyester / 50% polyurethane brushed fleece
Fill to max two-thirds capacity; do not use boiling water