women's blue underscrub

Women's Core One Long Sleeve Tee

Quick Overview

Introducing the first t-shirt that works as hard as you do. A moisture-wicking performance knit that is lightweight, and breathable with bacteriostatic technology to keep you dry and odor free all day - at work, at the gym, or in any setting.

Size Guide

Availability:In stock

Gift wrap available

  • XS
  • S
  • M
  • L
  • XL


It's what's underneath that matters most.

Whether you’re flying through a long shift, bending in yoga class, or shopping for this week's groceries. This performance knit will get you there in style, while keeping you fresh and odor free. The front & back technical ergonomic seam lines stand up to the toughest days while the scooped neck line and tapered sleeves provide a gorgeous, feminine fit for all size and body types.

  • Extremely soft and lightweight performance fabric feels like an additional layer of skin.
  • Durable material that resists pilling and fading over time.
  • Bacteriostatic, odor-free fabric that is worn close to the body.
  • Reinforced seams and fabric that retains its shape.
  • Optimized for comfort during long shifts, then yoga class, and then to the grocery store.
  • This shirt is meant to be lived in.

Women's Core One Tee

Women's Core One Tee Size Guide (measured in inches)
Medelita Sizes XS S M L XL
Numeric Equivalent 0 2 4 6 8 10 12 14 16
Self Measurements
Medelita Sizes XS S M L XL
Bust 30 32 34 36 39
Waist 27 29 31 33 36
Hip 34.5 36.5 38.5 40.5 43.5
International Conversions
Medelita XS S M L XL
US 00 0 2 4 6 8 10 12 14 16
UK 0 2 4 6 8 10 12 14 16 18
Europe 28 30 32 34 36 38 40 42 44 46
Italy 32 34 36 38 40 42 44 46 48 50
Austrailia 2 4 6 8 10 12 14 16 18 20
Japan 1 3 5 7 9 11 13 15 17 19
France 30 32 34 36 38 40 42 44 46 48

This performance knit is truly revolutionary. The combination of our technical fabric and beautiful seam lines will provide you with all day comfort and style. Specifically designed for the active, hardworking woman who deserves a better fit.


Wearing a bra you'd wear to work, measure under arms at the fullest part of your bust. Be sure to keep your arms relaxed and down, with tape measure parallel to the floor.

low hip

Wearing underwear or thin pants, stand with your feet together and measure the absolute fullest part of your hips / buttock. Be sure to keep tape measure parallel to the floor.


Wearing your work shoes, measure from the crotch seam where your scrub pants drape (approximately 1-2 inches below crotch) to the point on your shoe or clog where you prefer your pants to fall.

size guide

Place a measuring tape around the fullest part of your bust. Make sure the tape measure lays flat against you, but not too tight.


Stand with your feet hip-width apart and bend sideways—where you indent is your natural waist, measure in full circumference.


Standing with your feet about 2” apart. Place measuring tape around the largest part of your bottom, in full circumference.

Call 877.987.7979 or email contact.us@medelita.com for sizing help.

Core One Tee

Care Instructions


Pre-treat stains prior to washing.


Machine wash warm, regular cycle. Do not use chlorine bleach. Do not use liquid fabric softener - it will block the moisture wicking fabric feature.


Tumble dry on delicate/warm or lay flat to dry. Do not use a dryer sheet - it will block the moisture wicking fabric feature.


No ironing is necessary. Fabric is naturally wrinkle resistant.

Stain Removal

  • Amodex® Ink and Stain Remover
    Ink, Pen
  • OxiClean® Spray
    Blood, Coffee, General Stains, Tea
  • Shout® Advanced Stain Lifting Foam
    Cream-Based Makeup, Grease, Oil, Pus
  • The Laundress™ Stain Solution
    Deodorant, Iodine, Perspiration
  • Order 2 Sizes

    Shipping is free both ways in the U.S.

  • Return your preferred size for

    Custom Embroidery

  • Easily Print UPS Return Labels

    In your order history


4 Reasons To Try On At Home

  1. Convenience.
    Try on your garments on your own time. Keep what you like and send back the rest, or send back what you would like to be embroidered. We will process your embroidery or refund your purchase as soon as possible.
  2. No Fees.
    Purchases over $100 are automatically eligible for free shipping and returns within the United States (free shipping and returns not available in Alaska, Hawaii, or Puerto Rico - a $5 flat fee applies each way).
  3. Risk Free.
    Prior to specifying embroidery, order two sizes to find your best fit, and take advantage of free return shipping over $100. Let us know which garments to embroider and we'll refund the remaining garments.
  4. It's Easy.
    Simply log into your account, find your order, and print a UPS return label for exchange, refund and/or embroidery.


Frequently Asked Questions

Colleague Reviews

core one performance technology

core one - what's underneath
moisture wicking tshirts
odor control tshirts

A Complete Solution For Life + Work

CORE ONE PERFORMANCE fabric is a second layer of skin for any occasion. Meant to be lived in, it's perfect under your scrubs or simply on its own in any active or leisure setting.

stretch active tshirts

Contoured For Comfort

Medelita CORE ONE PERFORMANCE fabric is unlike any other active leisure fabric available in that it's an extremely lightweight fabric that is as soft as it is durable, making it the perfect ingredient in your active lifestyle.

Built To Last

While every other tee in your wardrobe falls apart, Medelita CORE ONE products retain their shape and have been rigorously tested to stand up to repeated washes and abuse.


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