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FirstSpear Friday Focus – FirstSpear ACM Field Shirts Base 100

FirstSpear ACM is the latest development in fabric technology. FirstSpear is excited to combine 100% source verified American Merino Wool with other quality materials to create ACM. By using a unique blend for each product FirstSpear is able to tailor each item to its intended purpose. With 3 different levels to choose from, ACM has you covered. The ACM-Base is extra soft against your skin and can be worn year round. ACM-Mid takes it up a notch when you need a little extra warmth and can be worn by itself or over an ACM-Base. ACM-Warm is the highest level and has been designed for maximum warmth and comfort and makes it easy to endure the cold.

By using Merino Wool FirstSpear is able to capitalize on all the naturally occurring material characteristics you desire. Merino Wool is packed with a wide range of high performance benefits for wherever your adventure takes you.

Available / In-Stock now in short sleeve and long sleeve variants using FirstSpear ACM BASE 100 in 4 colors: Commando, Heather Grey, Charcoal, and Sand. Ultra light weight and soft against the skin these new base layers combine all the high performance qualities of Merino Wool, sourced right here in the USA.

Short Sleeve



Long Sleeve



The all new Field Shirt is generously cut for long term comfort on extended adventures or daily wear on the job. Using the very best of proven materials brought forward in a technically advanced package the Field Shirt blends comfort, performance & fit to give you the very best function in styles and colors only FS can provide. Use it as either the ultimate base layer or a shirt on its own you can count on the Field Shirt in Short Sleeve or Long Sleeve.

Constructed from 38? American Merino Wool, 50? Polyester & 12? Modal, the fabric and construction of the Field Shirt is 100? USA

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4 Responses to “FirstSpear Friday Focus – FirstSpear ACM Field Shirts Base 100”

  1. Garrett says:

    Dude, sick shirt. Slap a “No Fear” on there and I’m sold! All my shirts have skulls on em’, won’t buy anything else. I would have made it more tribal looking if it were me but that’s your call FirstSpear. Love it! Wouldn’t be surprised if these puppies are flying off the shelf. Better stock up now boys, get em’ while there hot! Who even cares what it’s made of right?! 38? Something 50? Something else 12? Another thing (%) ITS GOT A SKULL ON IT BOYS! FRONT ROW CENTER!

    Sorry about all that. FirstSpear makes nice stuff but someone has to tell their designer “No man…No.” keep it simple. It’s a good thing it’s buried as the base layer. Come on FirstSpear! I’m trying to help! You make me this way!

  2. Lcpl1066 says:

    Especially if they intend to market these for duty wear.

  3. Gerard says:

    The symbol is ok but its way Huge, they just need to make it tiny. Its like the markings on the slides of the first S&W 1911s.

    • Gerard says:

      Those shirts are pricey compared to t shirts from Petagonia that have a higher wool content