The Solstice Graphene is guide grit plus lab smarts. 

NEED TO KNOW:

• Function: The newest, best iteration of Bight Gear's classic baselayer. Graphene fabric takes this piece to new heights with a light-as-air feel, UPF 55+ sun protection, next-gen moisture-wicking, and natural antimicrobial properties.
• Layering: Good for a range of temps and conditions. Wear alone as a sun hoodie, or as a next-to-skin baselayer under other layers when things get cold.
• Fit: Relaxed

FEATURES:

• Gen7 Graphene fabric
• Naturally antimicrobial for reduced stink
• UPF 55+ sun protection
• Oversized hood for full coverage with or without a hat
• Overlap below the chin to protect neck area from sun exposure
• Fast-drying
• Raglan sleeve for increased comfort and mobility
• Thumbholes with extra hand coverage for sun protection
• Drop tail hem provides coverage and length where needed most
• Flat seam construction for chafe-free comfort
• Relaxed fit

STATS:

• Fabrics: 95% Polyester (.04% graphene), 5% spandex
  
• Country of Origin: El Salvador
• Weight: 6.2oz 

IN MORE DETAIL:

This is the best baselayer we've ever made. Period. Years of development and iteration led us to a new synthetic fabric that feels like cotton, but wicks like synthetic. It incorporates Graphene nanomaterial for increased heat transfer and odor reduction, and comes in at UPF 55+ sun protection to keep you from getting microwaved up high.