# Classic All-Season Merino Base Layer Long Sleeve

- **Brand:** Smartwool
- **Price:** $100.00
- **Catalog:** zappos
- **Retailer:** zappos
- **Product URL:** https://go.cosimo.shop/r/gAAAAABq8ojFUg01Ub0UP8gnq8JDQEueKIf-zEqLHw9DdPwe_yzcDMuWdrHPZccQeZDEVzwfQHHrWnDBZN-z6D3P_U1RW7L3ldUwrtXELCWjA3W-hSn4tcbfs5T_eqj8OM67gMKzAwP5AHvXNTyIloD5BsWAFTe7kYar_Dx1Fw8YXxMhi7X7eNxIYY2fmliYl2obTLxcNfKGj-hkNrWbuEyIHvbK_lOsx9X-GFn2ZVDzeRotb9FPdkRFfM7yhrIXcABnrL-zgWfXx_hxugKs6kzH4q8h5_tNcohSCC4SHxi2Ts7omAhCL_GcrFA6j2PpAV5Jo4doDPKRVej5QgOxXZnA4u2-diIZYPEzAdMPaFuDqlF5gOBlm7VGdVo3Eoi4AvRRzwIKrXYbdhSTZi5lVpoDlaXEfucfegkHZVpUeGkt7tEIwWPb44Hp_-_NaQX3ORcGFN0tGsU9rMeihCSD0hCzH-TTtg6QU3-1DoPJ_esrVbhsloFPeSg=
- **GTIN:** 196247539677
- **Availability:** In stock

## Summary

Men's all-season merino wool base layer long sleeve shirt featuring a crew neckline, flatlock seam construction, and a color-block design.

## Description

Get a comfortable and clean look wearing the Smartwool® Classic All-Season Merino Base Layer Long Sleeve. This year-round base layer offers a crew neckline with long sleeves, a flatlock seam construction and offset shoulder seams that reduce chafing.

## Appearance

- **Colors:** Sable Brown Mountain, Black
- **Sizes:** SM, MD, LG, XL, 2XL (per-size availability under Variants)
- **Fit:** One Size

## Variants

- **In stock:** 5 of 10
- **Available:** Sable Brown Mountain / SM, Sable Brown Mountain / MD, Sable Brown Mountain / LG, Sable Brown Mountain / XL, Sable Brown Mountain / 2XL

| Size | Color | SKU | Availability |
| --- | --- | --- | --- |
| SM | Sable Brown Mountain | 56363344 | In stock |
| MD | Sable Brown Mountain | 56363345 | In stock |
| LG | Sable Brown Mountain | 56363346 | In stock |
| XL | Sable Brown Mountain | 56363347 | In stock |
| 2XL | Sable Brown Mountain | 60299033 | In stock |
| SM | Black | — | Unknown |
| MD | Black | — | Unknown |
| LG | Black | — | Unknown |
| XL | Black | — | Unknown |
| 2XL | Black | — | Unknown |

## Categories

- **Categories:** Shirts & Tops > clothing > Clothing > Shirts Tops

## Additional Attributes

- **sku:** 9831953
- **width:** One Size
- **gender:** Men's, men
- **neckline:** crew neckline
- **age group:** adult
- **body type:** REGULAR
- **size type:** standard
- **size group:** Adult
- **size range:** Regular
- **height type:** REGULAR
- **sleeve length:** Long Sleeve, long sleeves
- **item condition:** https://schema.org/NewCondition

## Enrichment

- **Type:** base layer
- **Type Synonyms:** thermal shirt, long sleeve undershirt, merino top
- **Gender:** male
- **Age Groups:** adult
- **Activewear:** Yes
- **Tags:** long sleeves, crew neck, flatlock seams, offset shoulder seams, merino wool, color-block
- **Styles:** athletic, outdoor, minimalist
- **Colors:** black, brown
- **Color Families:** Black, Brown
- **Category Path:** Apparel & Accessories > Clothing > Underwear & Sleepwear > Sleep & Loungewear > Thermals & Base Layers
- **Fabric:** Merino
- **Pattern:** Color Block
- **Canonical Brand:** Smartwool

## Images

- ![Image 1](https://cdn.storerouter.ai/0c89cf8c8a7cb255c2f144254622f48e/32cab6d99cc16787a4f7a4c711b73017.webp)
- ![Image 2](https://cdn.storerouter.ai/0c89cf8c8a7cb255c2f144254622f48e/eba9abfffb22671bb0755b2f6b256598.jpeg)
- ![Image 3](https://cdn.storerouter.ai/0c89cf8c8a7cb255c2f144254622f48e/accdd7365b2a49497ab727402e8cd2a6.jpeg)
- ![Image 4](https://cdn.storerouter.ai/0c89cf8c8a7cb255c2f144254622f48e/411a907cef8683754c09bc62d80ce8dc.jpeg)
- ![Image 5](https://cdn.storerouter.ai/0c89cf8c8a7cb255c2f144254622f48e/531583a0f4d34bb098487907966fa5ba.webp)
- ![Image 6](https://cdn.storerouter.ai/0c89cf8c8a7cb255c2f144254622f48e/f4cc28545023cfb858e23d2ec57f0bee.webp)

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*Source: cosimo.shop | Product ID: 5692b4f7-3fd3-5a75-994f-6fb3b3074531 | Canonical URL: https://cosimo.shop/product/smartwool/classic-all-season-merino-base-layer-long-sleeve-5692b4f7-3fd3-5a75-994f-6fb3b3074531*