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Grimfrost Rashguard, Knotwork

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  Supplier to Vikings and Game of Thrones
Product number: 4238

Supreme rashguard for your grappling activities. It is covered with knotwork designs, a god-mask on the front and runes on the back reading: "Thor viki, Odin gefa megin", which translates to: "Thor protect, Odin give power".

  • Color: Black
  • Print color: Grey and White
  • Material: Spandex and Nylon
  • Sizes S to 3XL (very elastic with compression)
  • Copyrighted design by Grimfrost

Tested and approved by professional MMA-fighters, it comes with the following features:

Raglan sleeves that are stitched from the collar and goes diagonally under the arm. This provides extra space under the arm, resulting in more freedom of movement. It also gives you a better appreance, promoting your chest and shoulders.

Flatlock seams that lie flat, preventing chafing. 

Long sleeves that allow wiping off sweat from the brow while wearing gloves.

Form fitting material in spandex and nylon that will gently squeeze you and slightly increase the blood flow without restricting your movement.

Moisture wicking, odor blocking fabric

Sublimated designs that will never crack, fade, or peel.


Rashguards are compression shirts. The cut is very fitted and stretchy, as a second skin. The measurements in the size guide are in a relaxed, non-stretched format. That is why they may seem small. 

For an optimal feeling of compression, pick the size you generally use for a t-shirt. For a lighter compression, choose a size above. Remember to take your body shape into account.

    Grimfrost Rashguard, Knotwork has a rating of 5.0 stars based on 6 reviews.