Hastko String No. 19 Sports Underwear

Sales price € 2995 Regular price 3595

✔ For athletes who want underwear they cannot feel
✔ Under tights and shorts for running, trail running and yoga
✔ Ultra-light and quick-drying, with no visible lines
✖ Less suitable if you want more coverage

Color: True Black
Size:
  • 365 days to exchange
  • Shipped daily
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  • Pick up in our Amsterdam store

Description

So light you forget you are wearing it. The String No. 19 is the lightest style in Hastko's Ultra-Light line, with a mid-rise waist. Heat-bonded, folded edges replace the seams, so nothing presses into your skin.

Made for moving under tight clothing. It shows no lines under tights or short shorts, and on a warm long run the thin fabric dries fast. Especially after a few hours of sweating you notice that nothing rubs.

Not sure? A thong is not comfortable for everyone over long distances. For more coverage, choose the Shorty No. 19; for a high waist with little fabric, the Tanga No. 23 fits better.

Pairs with any Hastko sports bra.

Specifications

  • Why this one
    Seamless sports thong for running, trail running and yoga
  • Activity
    Multisport
  • Gender
    Women
  • Layer
    Baselayer
  • Material
    Polyamide
  • Composition
    75% recycled nylon, 25% elastane; lining 98% cotton, 2% elastane
  • Care instructions
    Wash at 30 °C, Do not bleach, Do not tumble dry, Do not iron, No fabric softener
  • Colour
    Pink, Red, Black
  • SKU
    HKSTR19TBL1*
  • EAN
    3760371990078

Why Hästko?

On a long trail run you often only notice it after a few hours: a seam that rubs your skin with every step, a band that starts to chafe. That is exactly why we carry Hästko at Trail.NL.

Hästko makes sports bras and underwear for women without traditional seams. The fabric is heat-bonded, laminated and partly 3D-printed, so nothing presses or rubs, even over long distances. You choose from styles for long runs, for every sport and underwear you cannot feel under your tights.

For us, Hästko is above all a brand that takes one problem seriously: comfort where it counts. A French brand that has focused entirely on athletes who push their limits since 2017.

Frequently asked questions

Is a thong comfortable for running?

That varies per person. The String No. 19 is thin, light and seamless, so you barely feel it under tights. For more coverage, choose the Shorty No. 19.

What is the difference between the String, Tanga and Shorty?

They are made of the same fabric. The String No. 19 uses the least fabric, the Tanga No. 23 has a high waist and the Shorty No. 19 gives the most coverage.

Which size of Hastko underwear do I need?

Size 1 fits EU 34–36 (XS/S), size 2 fits EU 38–40 (M/L) and size 3 fits EU 42–44 (XL/XXL).

How do I wash the String No. 19?

At 30 °C in a laundry bag. No tumble dryer, no fabric softener or bleach, and no ironing.