Help – Numi

Frequently Asked Questions

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Sizing

How do I find my size?

For exact product sizing, please reference each style's product pages which is equipped with a size-guide and corresponding how-to-measure image (located to the right of the size selection). For measuring instructions, please refer to the following:

How-to-Measure

1. Bust: Measure the fullest part of your chest

2. Waist: Measure your natural waistline at the narrowest part of your torso

3. Hips: Measure the fullest part of your hips while keeping your feet together

Fit Tips

Numi Essential Undershirts: Our undershirts are tightly fitted to the body, with some stretch to the fabric. If you fall between sizes on the chart, we recommend choosing the larger size as they are a snug fit.

Numi Sustainable Silk™: Our silks fit true to size. If you fall between two sizes on the chart, we recommend choosing the larger size for comfortability.

How should an undershirt fit?

Our undershirts are intended to fit snug for an invisible look when worn under outer layers. If you prefer a non-fitted style, we recommend sizing up.

Product & Fabric Info

How do i care for my products?

link here to materials

Do your products contain PFAS?

No, all of our products are made PFAS-free. However, PFAS is transferable through other interactions a garment may have with contaminated sources. So while our items are made PFAS-free, we cannot guarantee they stay that way throughout their use.

What is your Sustainable Silk™ made of?

Our Numi undershirts are made of 69% Naia™ Acetate and 31% Silk. If you’d like to learn more about our fabrics, please visit our Materials page.

What makes your Sustainable Silk™ stain-resistant?

Our silks are stain-resistant because they are treated with Schoeller's bluesign® certified stain-resistant technology. This treatment creates a protective barrier on the surface of the silk fabric that repels liquids, dirt, and stains. The bluesign® certification ensures that the technology is environmentally-friendly, using sustainable and safe methods and materials.