| Option | Availability |
| Rothco ECWCS Generation III Midweight Black Underwear Top | Usually ships from our warehouse in 2-4 business days |
| M | Usually ships from our warehouse in 2-4 business days |
| L | Usually ships from our warehouse in 2-4 business days |
| XL | Usually ships from our warehouse in 2-4 business days |
| S | Usually ships from our warehouse in 2-4 business days |
| XXL | Usually ships from our warehouse in 2-4 business days |
| 3XL | Usually ships from our warehouse in 2-4 business days |
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