From the manufacturer

When it’s time to get your tour on, this 100% polyester long sleeve tee delivers wicking performance without the stink. Field tested and approved by Team Spark.

Features

AquaFX: Wicking polyester disperses perspiration to fabric surface for rapid evaporation.

Freshcare: Anti-microbial properties prevent the growth of odor-causing bacteria.

Snag-Free: 100% polyester jersey knit no-snag fabric.

Straight Comfy: No-stitch rib knit collar and screen printed logo for durability and all day comfort.