• Embroidery
  • Embroidery
  • Embroidery
  • Embroidery

Personalize With Embroidery

1. Add up to 3 characters

2. Select a color

Embroidery is positioned on the left chest of each garment. Please double check your embroidered text, as edits cannot be made after an order is placed.

Cooldown Pima™ Muscle Tank

Don’t overheat, oversleep. Cooldown Pima™ is your new reprieve for a cooler (and better) night’s sleep. Designed with soft and breathable, U.S. sourced pima cotton, it’s blended with jade and smartly engineered to dissipate sweat and regulate humidity. Translation? No more overheating at night. Featuring roomy arm openings and oversized fit style, it’s perfectly drapey to keep fabric away from the body as you slumber.
Immersed Black
Immersed Black
  • Extra Small
  • Small
  • Medium
  • Large
  • Extra Large
  • Free Ground Shipping on U.S. Orders $150+
  • Free returns on all U.S. Orders
  • Gift packaging available

    Give the gift of sleep

    One box per order, all items in the order will be placed inside the gift box. Make it personal — include a gift message to be placed in your gift box along with a gift receipt.

Product Details + Care


  • 69% Pima Cotton, 23% Viscose, 8% Polyester
  • Thermoregulating to help maintain a comfy body temp
  • Pullover styling
  • Front pocket, for all the essentials
  • Anti-microbial



  • Machine wash cold
  • HEIQ smart temp finish durable for over 40 washes
Size + Fit
  • Designed with an easy, relaxed fit
  • 25" L
  • Model wears size XS

Cooldown Pima™ Muscle Tank

  • Immersed Black
  • Tranquil White/Immersed Black
  • Extra Small
  • Small
  • Medium
  • Large
  • Extra Large

Why Lunya?

Free Ground Shipping on U.S. Orders $150+

We take the hassle out of shipping with free UPS Ground shipping on U.S. orders or more.

Free Returns on U.S. Orders

Not happy with your order? Send it back and get a full refund, no questions asked.

Digital Gift Cards

Give them the gift of choice (and avoids the curse of picking out the wrong gift).

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Lunya Size Guide

Unsure of your size? No need to lose sleep over it—we are here to help! To ensure proper fit, please refer to the fit guide below and if you have any questions, please feel free to email us at We are happy to guide you!

Free shipping on U.S. orders starts at $150

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