Quick Answer
Size FR shirts by chest, then check the fit. Ariat FR work shirts and crew tees are cut relaxed through the chest and shoulders and run true to size: a 38-41" chest takes a Medium. Carhartt FR Force Loose Fit runs roomier, with a dropped shoulder, longer sleeve and longer body. 100% cotton FR tees can lose length in a hot dryer, so wash cold and tumble dry low.
How the Main FR Shirts Fit
| Shirt | Fabric | Fit | Sizing tip |
|---|---|---|---|
| Ariat FR Work Crew tee | 6.75 oz, 100% cotton | Relaxed chest and shoulders | True to size; dry low to keep the length |
| Ariat FR Solid Work Shirt | 6.5 oz cotton/nylon | Relaxed chest and shoulders | True to size; size up to layer (see what to wear under FR) |
| Carhartt FR Force Dearborn tee | 6.75 oz, 100% cotton | Loose Fit: dropped shoulder, longer sleeve and body | Between sizes? Take the smaller one |
| Carhartt FR Force 104138 button-up | 4.7 oz inherent FR twill | Loose fit | Roomy; fits over a base layer |
Ariat chest sizes: S 34-37", M 38-41", L 42-45", XL 46-49", 2XL 50-53", 3XL 54-57". See the Ariat fit guide.
FAQ
Do FR shirts shrink?
Cotton FR knits can shrink in length, mostly from hot drying. Ariat's FR care label says wash cold and tumble dry low; skip bleach and fabric softener on any FR. See how to wash FR clothing.
Which FR shirt runs coolest?
Lighter fabric runs cooler: the 4.7 oz Carhartt 104138 over a 6.5-7 oz cotton blend. Compare solid FR shirts.
Can my crew try sizes first?
Yes: come by 3000 W 3rd St in Elk City, or set up a company FR program. Or browse all FR shirts.