Quick answer: choose lightweight packable overtrousers for walking, and heavier bib and brace or work waterproofs for farm, garden and fieldsports use.
The main types of waterproof trousers
| Type | Best for | Key benefit |
|---|---|---|
| Packable overtrousers | Walking, hiking, travel | Light and easy to carry |
| Waterproof work trousers | Gardening, dog walking, general outdoor work | Tougher fabric and pockets |
| Waterproof bib and brace | Farming, fishing, wet and muddy jobs | Full coverage of the lower back and chest |
Understanding waterproof ratings
Waterproof ratings are measured in millimetres (mm) of water column. As a rough guide, 5,000mm suits light rain, 10,000mm suits regular UK rain, and 15,000mm or more suits sustained heavy rain. Breathability matters too: if the fabric cannot vent sweat you will end up damp from the inside. Work waterproofs may also be tested to standards such as EN 343.
What to look for
- Full or half-length side zips: so you can pull them on over boots.
- Taped seams: sealed seams stop water seeping through the stitching.
- Reinforced knees and seat: for kneeling and sitting on wet ground.
- Adjustable waist and ankle closures: a secure fit stops rain and mud getting in.
- Room to move: allow space for the trousers you will wear underneath.
Our range
Browse men's waterproof trousers, women's waterproof trousers, waterproof bib and brace and waterproof gardening trousers. Pair them with a waterproof jacket for full weather protection.
Frequently asked questions
Are waterproof trousers breathable?
Most quality waterproof trousers are breathable to some degree, but no waterproof fabric breathes as well as ordinary walking trousers. Side zips and ventilation help.
What size waterproof trousers should I buy?
Size for what you will wear underneath. Overtrousers should fit over boots and a thermal layer without pulling at the crotch or knees.
Bib and brace or trousers?
Bib and brace covers your lower back and chest, making it ideal when bending, kneeling or working in heavy rain. Trousers are lighter and easier to put on and take off.
How do I keep waterproof trousers working?
Wash them with a technical wash, then reproof or reactivate the water repellent finish when water stops beading. See how to wash and reproof waterproofs.
Also read: walking trousers buying guide and what to wear for farm work. All guides live in The Field Guide.
