Size Chart
Quarkvibes Round Neck T-Shirt Size Guide
(Applies to all round neck collection styles including plus size)
All measurements are in inches. For the best fit, we recommend measuring a favorite t-shirt you already own laid flat, and comparing it to the grid below.
| Size | Chest (Circumference) | Body Length (HPS) | Shoulder | Sleeve Length | Sleeve Open |
| XS | 36" | 25" | 15" | 6.5" | 6.0" |
| S | 38" | 26" | 16" | 7.0" | 6.25" |
| M | 40" | 27" | 17" | 7.5" | 6.5" |
| L | 42" | 28" | 18" | 8.0" | 6.75" |
| XL | 44" | 29" | 18.5" | 8.5" | 7.0" |
| 2XL | 46" | 30" | 18.75" | 9.0" | 7.25" |
| 3XL | 48" | 31" | 21" | 9.5" | 9" |
| 4XL | 50" | 32" | 21.5" | 10" | 9.5" |
| 5XL | 52" | 33" | 22" | 10.5" | 10" |
| 6XL | 54" | 34" | 22.5" | 11" | 10.5" |
Note on Ribbing: All our premium round-neck collections feature a classic, durable 3/4-inch neck rib designed to retain its shape wash after wash. For Plus size collection, the neck rib is 1/2 inch.
How to Measure for the Perfect Fit
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Chest Circumference: Wrap a measuring tape around the fullest part of your chest (under the armpits). Keep the tape snug but comfortable, and make sure it is parallel to the floor.
-
Body Length (HPS): Measured vertically from the highest point of the shoulder (where the collar meets the seam) straight down to the bottom hem.
-
Shoulder: Measured straight across the back from the edge of one shoulder seam to the other.
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Quarkvibes Polo Collection Size Guide
(Applies to Modern "All Day" Polo (S - 2XL), Modern "All Day" Plus Polo (3XL - 5XL) and Signature Pocket Polo styles)
All measurements are in inches. For the most comfortable fit, measure around the fullest part of your chest, keeping the tape horizontal.
| Size | Chest (Full Circumference) | Body Length (HPS) | Shoulder | Sleeve Length | Sleeve Open |
| S | 38" | 26" | 16" | 7.0" | 6.0" |
| M | 40" | 27" | 17" | 7.5" | 6.5" |
| L | 42" | 28" | 18" | 8.0" | 7.0" |
| XL | 44" | 29" | 18.5" | 8.5" | 7.5" |
| 2XL | 46" | 30" | 18.75" | 9.0" | 8.0" |
| 3XL | 48" | 31" | 19" | 9.5" | 8.5" |
| 4XL | 50" | 32" | 19.5" | 10.0" | 9.0" |
| 5XL | 52" | 33" | 19.75" | 10.5" | 9.5" |
How to Measure for the Perfect Fit
-
Chest Circumference: Wrap a measuring tape entirely around the fullest part of your chest (just under the armpits). Keep the tape parallel to the floor for an accurate measurement.
-
Body Length (HPS): Measured vertically from the highest point of the shoulder straight down to the bottom hemline.
-
Shoulder: Measured straight across the upper back from one shoulder seam to the other.
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Quarkvibes Women Round Neck T-Shirt Size Guide
(Applies to Everyday Elegance Collection)
All measurements are in inches. For the best fit, we recommend measuring a favorite t-shirt you already own laid flat, and comparing it to the grid below.
| Size | Chest (Circumference) | Waist (Circumference) | Body Length (HPS) | Shoulder | Sleeve Length | Sleeve Open |
| XS | 33" | 29" | 23" | 13.5" | 5.5" | 5.0" |
| S | 35" | 31" | 24" | 14.5" | 6.0" | 5.5" |
| M | 37" | 33" | 25" | 15.5" | 6.5" | 5.75" |
| L | 39" | 35" | 26" | 16.5" | 7.0" | 6.00" |
| XL | 41" | 37" | 27" | 17.5" | 7.5" | 6.25" |
| 2XL | 43" | 39" | 28" | 18.5" | 8.0" | 6.5" |
Note on Ribbing: All our premium round-neck Everyday Elegance collection feature a classic, durable 3/4-inch neck rib designed to retain its shape wash after wash.
How to Measure for the Perfect Fit
-
Chest and Waist Circumference: Wrap a measuring tape around the fullest part of your chest (under the armpits). Keep the tape snug but comfortable, and make sure it is parallel to the floor. Similarly, wrap a measuring tape around the fullest part of your waist. Keep the tape snug but comfortable, and make sure it is parallel to the floor.
-
Body Length (HPS): Measured vertically from the highest point of the shoulder (where the collar meets the seam) straight down to the bottom hem.
-
Shoulder: Measured straight across the back from the edge of one shoulder seam to the other.
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Quarkvibes Women Crop Tops Size Guide
(Applies to The Contemporary Casual Collection)
All measurements are in inches. For the best fit, we recommend measuring a favorite t-shirt you already own laid flat, and comparing it to the grid below.
| Size | Chest (Circumference) | Body Length (HPS) | Sleeve Length | Sleeve Open |
| XS | 32" | 16" | 5.5" | 4.5" |
| S | 34" | 17" | 6.0" | 5.0" |
| M | 36" | 18" | 6.5" | 5.5" |
| L | 38" | 19" | 7.0" | 6.0" |
| XL | 40" | 20" | 7.5" | 6.5" |
How to Measure for the Perfect Fit
-
Chest Circumference: Wrap a measuring tape entirely around the fullest part of your chest (just under the armpits). Keep the tape parallel to the floor for an accurate measurement.
-
Body Length (HPS): Measured vertically from the highest point of the shoulder straight down to the bottom hemline.