Kite harness guide: waist vs seat harness, and how to pick your size

For your first kite harness after a course, I'd put fit under load first. I'd start by trying a waist harness for the freedom of movement. A seat harness makes sense if a waist harness rode up into your ribs during lessons, if you have a sensitive back, or if you're still spending a lot of time with the kite overhead. Use the size chart for that exact model, then try it on.

A harness transfers the kite's pull to your body. The control bar connects to the harness hook through the chicken loop, the loop under the bar. Your hips and back take the load while your hands steer, so if the harness digs in or rides up, you feel it for the whole session.

Seat vs waist harness

A seat harness sits low on your hips and has straps around your thighs. Those straps keep it down even when the kite pulls you upwards. That's why so many people learn in one: in lessons the kite spends a lot of time overhead, at 12 o'clock, pulling the harness towards your armpits. A seat harness has a lower tow point, which is why riders with sensitive backs and heavier riders often choose one. The trade-off is bulk, and the leg straps restrict your legs a little.

A waist harness goes around your middle. Your legs are free, you can twist your upper body more easily, and it's quicker to put on at the beach. Its weak spot is riding up, especially with the kite overhead. If it's loose as well, it chafes and pushes into your ribs.

In between there's the boardshort harness: it sits low like a seat harness but is cut more like shorts, so it restricts your legs less.

Which harness to buy after your course

On a course you spend a lot of time with the kite overhead. Body dragging means letting the kite pull you through the water without a board; a waterstart gets you out of the water and riding. Once you're riding, the kite sits more off to the side and the harness gets pulled forwards more than upwards. So a waist harness that kept sliding up on your first lesson may sit fine once you ride. That isn't guaranteed, but it's a reason to give it another try after a bad day.

I'd recommend a seat harness if: - your back hurts or you've had lower back trouble, - you're a heavier build and a waist harness keeps shifting, - you're still drilling waterstarts and body drags and a waist harness rides up into your ribs even when it's tight.

You'll also choose between softshell and hardshell. A softshell flexes with your body and usually costs less, but gives your back less support. A hardshell has a stiff back plate that spreads pressure over a larger area of your back. On a limited budget I'd start with softshell options, but I'd try both constructions under load from the outset. Choose the one that stays comfortable without pressure points.

What else to buy after a course, and in what order, is covered in kitesurfing gear for beginners and the complete kitesurfing equipment buying guide. For your kite size, try the kite size calculator.

How to pick your kite harness size

All you need is a tape measure and the maker's size chart. Brands use different measuring points, so follow the instructions for your chosen model:

• Mystic measures your waist at belly button height. Their men's harnesses run S 75-84 cm (29-33 in), M 82-91 cm (33-35 in) and L 89-96 cm (35-38 in).
• ION measures the narrowest point of your waist. For a hardshell it also wants your back length, from your 7th cervical vertebra (roughly your T-shirt neckline) to the top of your hip bone. If you have a longer back, some models come in a Tall version.

Notice the sizes overlap. With an 83 cm waist you're both an S and an M at Mystic. I'd try both under load using the shop's dedicated harness test point, with help from the staff. Tighten the straps evenly and centre the hook. The harness should follow your lower back, stay put and avoid digging into your ribs or back. If it still shifts when tightened, or leaves a gap behind you, try another size or shape.

With the control bar you'll use, check on land that you can reach the bar when it's pushed away, as well as its quick release. Hook length can make a difference, especially if you have shorter arms. Your waist measurement alone won't tell you whether you can reach comfortably.

A few things size charts don't shout about: - Women's harnesses have their own chart. Mystic and ION both list them separately. - The spreader bar must fit your specific harness. Mystic's men's chart recommends 240 or 280 mm for S, 280 mm for M, and 280 or 320 mm for L. These are recommended combinations, not a list of what's included in the box. When buying a bar separately or second-hand, check its model, mounting system and recommended length with the harness manufacturer; matching the width alone doesn't guarantee compatibility. - Try it on in what you'll ride in. A harness sits differently over a thick wetsuit than over a rash vest.

A used harness is a good way to save money, just don't buy one without trying it on. What to check on used gear is in the guide to buying second-hand kite gear.

How to put a kite harness on and tighten it

A harness should feel secure and comfortable on the beach. Fastening systems vary, so read the instructions for your model first:

1. Position a waist harness around your waist and fasten the velcro flat, without folds. It only needs to hold the harness in place; don't suck in your stomach or overtighten the belt.
2. Close the spreader bar and tighten the straps evenly on both sides so the hook sits in the middle of your body.
3. Brace your hand against the hook and adjust the straps as needed. You should still be able to breathe, bend and turn normally, without pain.

Check the fit under load on a harness test point before going on the water. Resolve painful pressure by adjusting the harness or trying another size or model. Both videos here recommend tightening to discomfort; I'd follow the manufacturer's guidance and keep the fit comfortable, with unrestricted breathing.

I'd bring my own harness to the next lesson so I could go through the fit with an instructor. If you're still not independent after your course, book more instruction. On the kite safari in Egypt, a 3-hour refresher costs 180 EUR, while beginners can take a 6-day course for 600 EUR including kite gear. Beach boys can help you launch and land, but you still need an instructor while you're learning.

Fixed hook or rope slider

The spreader bar on your harness has either a fixed hook or a rope slider, a rope the chicken loop slides along from side to side.

• A fixed hook gives you a stable, direct feel for the kite. It suits cruising and jumping, and I'd choose it for a first harness.
• A rope slider lets your body rotate naturally and makes toeside riding easier: you ride on your toe edge with your back to the kite. Brands recommend it mainly for waves and foiling.

If you're thinking about a rope slider, check compatibility with your bar's manufacturer. For the systems covered by its safety guide, FLYSURFER requires a reinforced chicken loop with a ring or rope slider. How the bar works and what to check on it is in the guide to the kite control bar and lines.

Leash and knife: 2 things to check when you buy

For a first harness, I'd look for a manufacturer-designated front attachment for a short safety leash. The leash keeps you connected to the kite after you activate the bar's quick release, its emergency release system. The leash has its own release for complete disconnection; keep it at the front and within easy reach. Don't attach it behind your back.

Whether the harness is new or used, read the harness, leash and bar manuals to check that the combination meets the manufacturers' instructions. Once you're wearing it, check that you can reach both releases. Before each use, test opening and correctly reassembling them on land, without a kite in the air, following the manuals. If you're unsure of the procedure, go through it with an instructor.

Check for a line knife too. Many harnesses have a pocket for one; the Mystic Stealth, for example, hides it at the side. Carry one from your very first solo session.