Here’s what to look for:
Zips
Either water-resistant or protected by a storm flap. Zip sliders on water-resistant zippers tuck into a ‘garage’ to prevent rain entering through the top of the zip.
Cuffs
Cuffs that can be tightened will prevent water running up your sleeve when you raise your arms. Pull cuffs over baselayers to prevent water wicking upward.
Ventilation
All rainwear claims to be ‘breathable’ – able to transfer perspiration through the fabric – but it won’t be able to keep up with the amount of sweat produced. Pitzips and side vents help dump heat. Mesh-lined pockets help with ventilation and breathability, but can make stored items wet from perspiration.
Pockets
Handwarmer pockets are ideally positioned so they can be accessed while wearing a pack or harness (called pack-friendly). They should be large enough to hold items like a map. A chest pocket with a vertical opening can also provide easy access to map and compass.
Hoods
Many hoods are large enough to accommodate a helmet, which is why they also come with volume adjusting drawcords or Velcro tabs to ensure your head can be snugly encased. Ensure the stiffened brim does not limit visibility.
Abrasion resistance
The fabric might be reinforced at high-wear points such as the elbows and shoulders.
Three- or 2.5-layer
Three-layer jackets have a waterproof membrane sandwiched between a durable face fabric and inner lining. They tend to be more expensive, heavy and bulky, but are hard-wearing and designed for the harshest conditions. 2.5-layer shells (a face fabric and waterproof membrane with a protective sheen or print overlaid) are lighter, less expensive and more packable, but not as breathable or as durable.
Length
Below-the-waist designs tend to be heavier, but provide better protection and a ‘tail’ to sit on. To-the-waist jackets are lighter and often have stretch panels in key areas to prevent the hem lifting.
Water resistance and breathability
Technical rainwear fabric works much like your skin: tiny moisture vapour droplets pass through its pores, while larger rain droplets are blocked from passing through the other way. Garments can be tested to determine water resistance and breathability.
Water resistance: The amount of water pressure (in millimeters) a fabric sample can withstand before leakage occurs – 20,000mm is common.
Breathability: The amount of water vapour (in grams) that can pass through a square metre of fabric during a 24-hour period – 20,000g/m2 is common.
Because there is no standardised test to measure breathability and water resistance, the products featured here do not have this information displayed.
Care
Five tips for keeping your jacket as good as new
- Wash your wet weather gear as often as you would wash your jeans
- Store dry and with any obvious dirt washed off
- Wear long sleeves to prevent body oils and sunscreens from degrading the membrane
- Use a technical wash – Nikwax or Grangers for example (laundry powder can affect the garment’s breathability)
- Re-proof your jacket with a spray-on or wash-in durable water repellent.
Now you know what to look for, it;s time to choose a jacket…

