Mack Weldon ACE Crew Neck Sweatshirt: measurements by size
89% cotton, 8% polyester, 3% spandex · regular fit · $98.00
Measurements
| Size | Chest (around) | Length |
|---|---|---|
| S | 40¾″ (41½″ new) | 26¼″ (27¼″ new) |
| M | 42¾″ (43½″ new) | 26¾″ (27¾″ new) |
| L | 44½″ (45½″ new) | 27″ (28¼″ new) |
| XL | 46½″ (47½″ new) | 27½″ (28¾″ new) |
| XXL | 48½″ (49½″ new) | 28″ (29¼″ new) |
89% cotton, so the main numbers are after a dryer; "new" is as sold.
If this shirt fits you, the same fit in other long sleeves
Find the size you wear in the Mack Weldon ACE Crew Neck Sweatshirt and read across: the size in each shirt whose chest is closest, and how it compares.
| Shirt | If your M fits | If your L fits | If your XL fits |
|---|---|---|---|
| Bella+Canvas Unisex Jersey Long Sleeve Tee (3501) | L ½″ roomier | L 1½″ snugger | XL ½″ roomier |
| Buck Mason Field-Spec Rugby Polo | L 1″ roomier | L 1″ snugger | XL the same around |
| Buck Mason Field-Spec Sandlot Tee | M the same around | L 1½″ roomier | L ½″ snugger |
| Buck Mason Vintage Thermal Henley | L the same around | XL 1″ roomier | XL 1″ snugger |
| Buck Mason Welterweight Hooded Sweatshirt | M ½″ roomier | M 1½″ snugger | L ½″ snugger |
| Carhartt Workwear Pocket Long Sleeve T-Shirt (K126) | S 1½″ snugger | M ½″ roomier | M 1½″ snugger |
| Comfort Colors Heavyweight Ring Spun Long Sleeve Tee (6014) | L 1″ snugger | XL ½″ roomier | XL 1½″ snugger |
| Comfort Colors Ring Spun Crewneck Sweatshirt (1566) | S 1½″ snugger | M ½″ roomier | M 1½″ snugger |
| Gildan Heavy Blend Crewneck Sweatshirt (18000) | M ½″ roomier | M 1½″ snugger | L ½″ roomier |
| Gildan Heavy Blend Hooded Sweatshirt (18500) | M ½″ roomier | M 1½″ snugger | L ½″ roomier |
| Gildan Heavy Cotton Long Sleeve T-Shirt (5400) | L ½″ roomier | L 1½″ snugger | XL ½″ roomier |
| Gildan Ultra Cotton Long Sleeve T-Shirt (2400) | L ½″ roomier | L 1½″ snugger | XL ½″ roomier |
| J.Crew Long-sleeve Washed Piqué Polo Shirt | L 1″ roomier | L 1″ snugger | XL the same around |
| J.Crew Summerweight Waffle-knit Cotton Henley | L ½″ roomier | L 1½″ snugger | XL ½″ snugger |
| J.Crew Summit Midweight Thermal-knit Henley | L 1½″ roomier | L ½″ snugger | XL ½″ roomier |
| J.Crew Wallace & Barnes Heritage-weight Cotton Long-sleeve T-shirt | M ½″ roomier | M 1½″ snugger | L ½″ snugger |
| Mack Weldon Pima Long Sleeve Crew | XL ½″ roomier | XXL ½″ roomier | XXL 1½″ snugger |
| Next Level Cotton Long Sleeve Tee (3601) | L ½″ snugger | XL 1½″ roomier | XL ½″ snugger |
| Port & Company Core Fleece Pullover Hooded Sweatshirt (PC78H) | M ½″ roomier | M 1½″ snugger | L ½″ roomier |
| Tapulco Knit Mock Turtleneck | XL 1½″ roomier | XL ½″ snugger | XXL ¾″ roomier |
| Todd Snyder Heavyweight Rugby | XS ½″ roomier | S ½″ roomier | M ½″ roomier |
| Todd Snyder Long-Sleeve Grant Polo | L ½″ roomier | L 1½″ snugger | XL ½″ snugger |
| Todd Snyder Premium Jersey Long-Sleeve Tee | L ½″ roomier | L 1½″ snugger | XL ½″ snugger |
| Uniqlo AIRism Cotton T-Shirt | Long Sleeve | S the same around | M the same around | L 1½″ roomier |
| Uniqlo Sweat Oversized Pullover Hoodie | XS 2″ roomier | XS the same around | S the same around |
| Uniqlo Sweatshirt | S 1″ roomier | S 1″ snugger | M ½″ snugger |
| Uniqlo Waffle Henley Neck T-Shirt | Long Sleeve | M 1″ roomier | M 1″ snugger | L the same around |
| Uniqlo Waffle T-Shirt | Long Sleeve | M 1″ roomier | M 1″ snugger | L the same around |
More: Does Mack Weldon run big or small?
Get your exact size in any of these
Add three shirts you own that fit well. FitCard compares their real measurements with every shirt here and tells you the one size to buy, and why, in terms of your own shirts. Free, no tape measure.
Garment measurements: the shirt itself, chest all the way around and length from shoulder to hem, from each brand's own chart or wholesale spec sheet, checked November 2026. Shirts with half or more cotton are shown as they come out of a dryer (about 2% less around and 4% shorter). Brands change their cuts, so check the shop's chart before you buy.