Size and fit guide
Getting the right fit matters for clothing, harnesses and footwear outdoors. Sizes vary between makers, so use this page to take your measurements, then compare them with the size information on the product page you are looking at. If a product page has no size information, or you are between sizes, contact us before you order and we will help where we can.
How to measure
Use a soft tape measure, wear light clothing and keep the tape snug but not tight. Write the numbers down in centimetres.
- Chest: around the fullest part of your chest, under the arms, with the tape level across your back.
- Waist: around your natural waist, usually just above the belly button.
- Hips: around the widest part of your hips and seat.
- Inside leg: from the crotch to the floor, standing without shoes.
- Hand: around the widest part of your palm, below the knuckles, excluding the thumb. Also note the length from the wrist crease to the tip of your middle finger.
- Foot: stand on a sheet of paper with your heel against a wall, mark the tip of your longest toe and measure from the wall to the mark. Measure both feet late in the day and use the longer one.
Gloves, socks and base layers
- Gloves: compare your hand measurement with the size information on the glove's product page. Allow a little room at the fingertips if you plan to wear liner gloves underneath. See waterproof thermal touchscreen gloves.
- Socks: walking socks are usually sold by UK shoe size range. Choose by the shoe size you wear in your walking boots. See thermal hiking boot socks and alpaca wool hiking socks.
- Base layers: designed to fit close to the skin without restricting movement. Use your chest and waist measurements, and if you are between sizes, the larger size is usually more comfortable for layering. See the men's thermal base layer set.
Climbing harnesses and shoes
Always use the manufacturer's size chart on the product page and follow the fitting instructions supplied with the product.
- Harnesses: measure your waist and the top of your thighs. The waist belt should sit above the hip bones and stay there when you hang in it. Try a harness on and test it at a climbing wall before your first outdoor climb. See rock climbing.
- Climbing shoes: these are worn more snugly than everyday shoes, and the right fit differs between models. Use the size information on the product page and read the maker's notes on fit.
Sleeping bags
Choose a bag that is longer than your height so your feet are not pressed against the end, which can make them feel cold. Check the dimensions on the product page. Envelope-shaped bags give more room to move, while mummy shapes are closer fitting. See shelter and sleep.
Rucksacks and back length
For larger rucksacks, back length matters more than height. Ask someone to measure along your spine from the bony bump at the base of your neck down to the level of the top of your hip bones. Compare it with the back length on the product page, if one is given. Load the pack, tighten the hip belt first so it carries most of the weight, then adjust the shoulder straps. See hiking and walking.
Returns if the fit is wrong
If something doesn't fit, you can return unused items in their original condition. Our delivery and returns page explains how.
Size guide FAQs
What if I am between two sizes?
For base layers and clothing you will wear under other layers, many people choose the larger size. For harnesses and climbing shoes, follow the maker's fitting advice on the product page.
Are your sizes UK sizes?
Check the product page. Some makers give UK sizes, and others give EU or US sizes or measurements in centimetres.
Can I return an item if it does not fit?
Yes, unused items in their original condition can be returned. See our delivery and returns page for the time limits and how to start a return.
How should walking socks fit?
Snug, with no loose fabric at the heel or toes that could rub. The heel of the sock should sit on your heel.