Please measure to find the perfect Smartwool fit for you!
| Size | Chest | Waist | Hip | Arm Length | Inseam |
|---|---|---|---|---|---|
| Small | 36-36" | 29-31" | 36-38" | 31-32" | 30-31" |
| Medium | 39-41" | 32-34" | 39-41" | 32-33" | 31-32" |
| Large | 42-44" | 35-37" | 42-44" | 33-34" | 32-33" |
| X-Large | 45-48" | 38-40" | 45-48" | 34-35" | 33-34" |
| XX-Large | 49-51" | 41-44" | 49-51" | 35-36" | 34-35" |
| Size | Chest | Waist | High Hip | Hip | Arm Length | Inseam |
|---|---|---|---|---|---|---|
| X-Small 0-2 |
32-33" | 24-25" | 31-32" | 35-36" | 27-28" | 29-30" |
| Small 4-6 |
34-35" | 26-27" | 33-34" | 37-38" | 28-29" | 30-31" |
| Medium 8-10 |
36-38" | 28-30" | 35-36" | 39-40" | 29-30" | 31-32" |
| Large 12-14 |
39-40" | 31-32" | 37-38" | 41-42" | 30-31" | 32-33" |
| X-Large 16-18 |
41-42" | 33-34" | 39-40" | 43-44" | 31-32" | 33-34" |
| Plus Sizes | ||||||
| 1X | 43-45" | 39-41" | 44-46" | 45-47" | 31" | 30-32" |
| 2X | 47-49" | 43-46" | 48-50" | 49-51" | 31" | 30-32" |
| 3X | 51-53" | 47-50" | 52-54" | 53-55" | 32" | 30-32" |
| 4X | 55-57" | 52-55" | 56-58" | 57-59" | 33" | 30-32" |
| Size | Comparable Bra Size | Recommended Impact | |
|---|---|---|---|
| X-Small | 30 A, B, C - 32 A, B | A, B - Medium Impact | C - Low Impact |
| Small | 32 A, B, C - 34 A, B | A, B - Medium Impact | C - Low Impact |
| Medium | 34 A, B, C - 36 A, B | A, B - Medium Impact | C - Low Impact |
| Large | 36 A, B, C - 38 A, B | A, B - Medium Impact | C - Low Impact |
| X-Large | 38 A, B, C | A, B - Medium Impact | C - Low Impact |
| Size | Hand Size |
|---|---|
| X-Small | 6-6.5" |
| Small | 7-7.5" |
| Medium | 8-8.5" |
| Large | 9-9.5" |
| X-Large | 10-10.5" |

Stay cool when the pace picks up in Smartwool's Men's Active Ultralight Long Sleeve. Merino wool and Tencel performance fabric regulate temperature and dry fast, while an athletic fit with offset seams reduces chafing. Lightweight and soft with reflective details, it works solo for evening runs or as a breathable base layer in colder conditions.
Features
- Fit: athletic
- Athletic fit†hugs the body, enhances motion
- Blended Merino and Tencel performance fabric keeps you cool
- Offset shoulder and side seams minimize chafing
- Reflective elements for added visibility
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Age Group
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Style #
Please measure to find the perfect Smartwool fit for you!
| Size | Chest | Waist | Hip | Arm Length | Inseam |
|---|---|---|---|---|---|
| Small | 36-36" | 29-31" | 36-38" | 31-32" | 30-31" |
| Medium | 39-41" | 32-34" | 39-41" | 32-33" | 31-32" |
| Large | 42-44" | 35-37" | 42-44" | 33-34" | 32-33" |
| X-Large | 45-48" | 38-40" | 45-48" | 34-35" | 33-34" |
| XX-Large | 49-51" | 41-44" | 49-51" | 35-36" | 34-35" |
| Size | Chest | Waist | High Hip | Hip | Arm Length | Inseam |
|---|---|---|---|---|---|---|
| X-Small 0-2 |
32-33" | 24-25" | 31-32" | 35-36" | 27-28" | 29-30" |
| Small 4-6 |
34-35" | 26-27" | 33-34" | 37-38" | 28-29" | 30-31" |
| Medium 8-10 |
36-38" | 28-30" | 35-36" | 39-40" | 29-30" | 31-32" |
| Large 12-14 |
39-40" | 31-32" | 37-38" | 41-42" | 30-31" | 32-33" |
| X-Large 16-18 |
41-42" | 33-34" | 39-40" | 43-44" | 31-32" | 33-34" |
| Plus Sizes | ||||||
| 1X | 43-45" | 39-41" | 44-46" | 45-47" | 31" | 30-32" |
| 2X | 47-49" | 43-46" | 48-50" | 49-51" | 31" | 30-32" |
| 3X | 51-53" | 47-50" | 52-54" | 53-55" | 32" | 30-32" |
| 4X | 55-57" | 52-55" | 56-58" | 57-59" | 33" | 30-32" |
| Size | Comparable Bra Size | Recommended Impact | |
|---|---|---|---|
| X-Small | 30 A, B, C - 32 A, B | A, B - Medium Impact | C - Low Impact |
| Small | 32 A, B, C - 34 A, B | A, B - Medium Impact | C - Low Impact |
| Medium | 34 A, B, C - 36 A, B | A, B - Medium Impact | C - Low Impact |
| Large | 36 A, B, C - 38 A, B | A, B - Medium Impact | C - Low Impact |
| X-Large | 38 A, B, C | A, B - Medium Impact | C - Low Impact |
| Size | Hand Size |
|---|---|
| X-Small | 6-6.5" |
| Small | 7-7.5" |
| Medium | 8-8.5" |
| Large | 9-9.5" |
| X-Large | 10-10.5" |






