I'm fairly new to riding. Have a small 200cc adv bike that's been great for riding pavement 30 minutes into town for errands (instead of the car), and also for tooling around on the dirt/gravel mountain roads here in Colombia.

Because it was fairly short rides and can be very hot here, I bought a very ventilated jacket (no zippers to open ventilation...the whole jacket is ventilated) with elbow and shoulder pads (also comes with a thermal interior liner, removable) and a pair of motorcycle slacks (essentially jeans with knee and hip pads).

Also purchased some excellent rain gear to throw over everything.

But, we are now planning on taking a few long motorcycle trips in Europe over the next two years. As I'm investigating the trip, I see a lot of riders with the polyester two piece suits (usually matching).

What's the advantage of these suits over motorcycle jeans and a jacket?

The advantage is comfort. Motorcycle jeans... let's assume that you have bought actually good moto jeans, ones that have aramid fiber in the denim itself and provide some real abrasion resistance, not just pockets for knee pads... well, those can actually be quite hot, as the material needs to be reasonably dense! And cotton denim absorbs sweat, so they will stink.

Proper motorcycle textile trousers can be of the loose-weave material that gives you great ventilation (better than jeans!) if you buy the right model. They are also usually sized to be pretty loose, creating an air gap around your leg, which also helps with temperature. Plus ADV models will have hip pockets, waterproof pockets, zippers... hip pads and knee pads in the correct location for a seated riding position, flaps on the pant legs to get them over your moto boots... basically moto textile pants are superior to jeans in every way except looking good in a restaurant.

Most moto textile suits also come with a thermal liner and a waterproof liner. You can zip them in or out, and turn your well-ventilated summer suit into a pretty decent spring-autumn suit. European riders buy their equipment for down to just a few degrees above freezing, because we ride until there is ice on the ground.

That said... I own moto textiles, but I also own moto jeans, and I own very well ventilated summer jackets, and I own heavy-duty leather jackets. Part of the hobby. When I rented a bike in Thailand earlier this year on holiday, I brought my Furygan Kenya jacket, moto jeans, and hiking boots (very much a compromise solution and a calculated risk!) - but when I have access to my full wardrobe, I will take my textiles for many trips, especially if I am doing any ADV-style riding.

Over the decades I've had three sets of the BMW Rally two piece suits but these are now about £1,600, and not ideal in all circumstances.

Much of my riding is in hot climes that can also be cold. It's easier to add warmth than deduct it, so my preference is for a highly ventilated 'air' type textile jacket and trousers with a decent amount of armour, but no thermal or waterproof liners. Oh, and in a light colour for when the sun is blazing down.

I never understood the logic of having a waterproof liner that allows the outer jacket and trousers to become sodden, and the faff of having to stop to put the liner in when it starts to rain, and then get undressed again to take it out of the jacket and trousers. Especially if you are camping and you have to share your tent with the sodden jacket and trousers, and the gear is still cold and wet the next morning.

So I have good quality lightweight waterproofs (Scott, Weiss) that I can slip over the textile jacket and trousers. For warmth I might use generic thermal long johns on lower half, but my preference for body is a Gerbing electric jacket that's worth three normal layers in warmth. If it's really cold I can also slip on the waterproof gear as an extra windbreaker. And yes, I'm often in hiking boots as I like to get off the bike and explore.

I definitely don't look as 'cool' as I might in a Klim/BMW type outfit, but the costs are a fraction and I can't see an obvious downside. So to answer @MTBE's question, I see no great advantage. What you have sounds fine for setting out, and you can easily source inexpensive textile trouser alternatives in Europe if needed.

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"For sheer delight there is nothing like altitude; it gives one the thrill of adventure
and enlarges the world in which you live," Irving Mather (1892-1966)

I ride in Thailand and I have a Knox AA rated armoured shirt and 2 pair of roadskin jeans, the AAA rated Taranis and the AA rated Easyrider.
Yes they can get a bit hot but they are not too bad even in the hot season

https://www.horizonsunlimited.com/hu...-mk3-aa-104756

https://www.horizonsunlimited.com/hu...d-jeans-104755

https://roadskin.co.uk/collections/m...ed-ce-approved

Wayne

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The Balkans
https://new.horizonsunlimited.com/poi_entity/8417

I ride in Colombia and have a bmw 2 piece rally suit. expensive heavy and not all well made, I have worn it for about 6 years and have survived many flying off the bike and take a crash. this is always slow speed. the suit has saved my ass many times, yesterday on a mountain road in drizzle I was passing a small Moto with 2 guys on it and they swerved to miss a giant pothole, they probably did not see me in there lh mirror and run into me on my rh side, WTf I took there lh mirror completely off with my elbow I saw it flying across the road. there bike did not go down so I just kept going
Moral of the story is, wearing light gear would probably not be sufficient for the impact and I would of been a hurting unit in the aftermath or could of gone down
I was accelerating in 2nd and really moving when they hit me.
So take your pick, you boil to death in heavy gear or simply get hurt in light gear. but of course you will look cool
Think about playing hockey scenario you can be hit at 30 to 50 km per hour with a 100kilo guy on super sharp skates and a stick that can break your arm.
Would you play with shitty equipment No Fn way
I never felt anything nocking the opponents mirror off
the padding worked
my rh soft pannier had a strap ripped off
they impacted my rh leg also, the boots and pants saved the day I am religious on riding gear when traveling and I do it a lot. I wear hiking boots and gloves helmet going to the store to buy things and its in local crazy traffic but slow

Trying to talk the wife into riding down to Mocoa and do the 'trampolina' to Pasto in February.... Probably pass through Neiva on the way down.