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“First Adventure” Kids Underpants

Linen undergarment for medieval kids


Shipping & Manufacturing

Standard shipping
Standard shipping time
16-21 Days
Manufacturing time
35-50 Days

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Kid's pants size chart

 - Available for immediate shipping

 - Available for 35-50 days order

Size chart

“First Adventure” Kids Linen Underpants

Undergarment for medieval kids

Are you ready to bring the whole family along to medieval events? We’ve had so many requests for matching children’s clothing, and we’ve finally decided to release a whole line of beautiful ArmStreet clothing made especially for kids! All of these items have been completely designed from scratch to make sure they fit children perfectly and tested on our own kids to make sure they’re comfy and look cool. We love bringing our littles ones along to events with us, and are excited to share these items that make it easier than ever before to look awesome and have fun!

These pants have no specific historical design, but we’ve made them so that they look nice with medieval clothing and don’t appear out of place. They’re simple, made from historical textiles, and look fantastic with a tunic. These pants do up at the waist with a drawstring and are 3/4 length. They’re straight-legged and have lots of room at the hips to allow for running, jumping, sword fighting, and whatever kind of adventure you go on. They aren't made from knitted or sweatpants material, though, so keep in mind that though they do allow for movement, they will not stretch in the same way as modern athletic pants. At the bottom is a lovely little fringe that makes them look fantastic and adds a little bit of fun to the whole look. Please note that the fringe is added to the bottom of the hem and not the result of an unfinished edge!

We chose to make these pants from the same 100% flax linen that we use for our adult clothing and dresses. This is because it’s a high-quality fabric, durable, historical, and breathable. Honestly, we think that linen is the best thing ever, and it makes a very good layer underneath other clothing as well because it wicks sweat and keeps you cool. Even though it starts out a little bit starchy, even after wear it starts to warm up and become incredibly soft and is a pleasure to wear.

Keep in mind that medieval clothes fit a little bit differently from modern clothes. We advise having a conversation with your child before they wear them so that they know that they will feel more like thick, non-stretch jeans opposed to endlessly stretchy jersey sweatpants. We always find that talking about it and making sure they’re prepared for the different styles of fashion makes them more comfortable and confident in the clothes.

These pants are more inspired by medieval underpants - if you’re looking for the full length, please take a look at our “First Adventure” Cotton Pants.

If you have any questions, please contact us.

To check how to measure yourself please click here.

Pay attention to one important thing: most kids, especially when it comes to smaller ones, are used to wearing way softer clothing, which is usually made of extremely soft and stretch fabric. So there is a chance your kid won't be happy dealing with medieval clothes limitations and natural fabric early on. As we experimented on our own kids, statistically all of them get used to this after a while – normally when linen gets softer and shapes a tad on the owner's body. But please be very conscious about it in the beginning and make sure your kid is really comfortable with the medieval costume. We tried our best to make this clothing as comfortable and loose and flowing as possible, but natural fabric and ancient patterns have their disadvantages, so the final decision is on you: we can't guarantee that any kid will be comfortable wearing our medieval clothes.


  • 100% flax linen.


  • Designed for kids;
  • Fringe on the bottom;
  • Breathable high-quality flax linen;
  • Drawstring fit;
  • 3/4 length.

This item is part of the “First Adventure” collection

View collection

Related items

“First Adventure” Kids Undertunic

Linen t-shaped short tunic for children


“First Adventure” Kids Outfit Set

Linen undertunic with overtunic for boys


“First Adventure” Linen Pouch

Sackcloth kids bag with wooden toggle


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