Size Guide

Designed for 70°F. Latitude adjusted for the 30°s: Think cool Pacific water meeting sunny LA skies. Or the hot Calima wind meeting the cool Canary Islands. Be they daydreams or destinations, the 70°/30° has you comfortably and stylishly covered.

Temperatures in the 70°s, though comfortable, can be too cool in the shade or too warm in the sun. With the right t-shirt, though, it's the perfect temperature all the time.

For the 70°/30° we selected a special slub-knit, combed, ring spun cotton. Slub knitting creates a fabric with alternating thicknesses and densities. The denser moments in the fabric insulate and maintain a consistent temperature while the spaces between offer passage to excess heat and vapor. Along with a generous cut and special neckline, the 70°/30° keeps you comfortable as sun, breeze, and cloud contribute what they will to the variable temperature.

  • Made in Los Angeles, California USA
  • 100% Cotton, Ring Spun and Combed
  • Slub knit fabric maintains comfortable temperature in variable conditions
  • Pre-shrunk and garment-dyed
  • Specially designed for warm to cool temperatures
  • Latitude adjusted for 30° (LAX > LPA)

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Getting the right size is easy: Order your Underneathwear the same size you would a pair of pants, jeans, or board shorts.

If you are unsure of your selection, order multiple sizes and keep only what you prefer.

If you find that you would like a different size we will gladly make the exchange for you, free of charge. Our TRUE-FIT Guarantee and free return shipping makes getting the right size easy.

See returns and exchanges for details.




A true to size, tailored fit will embrace your body, not suffocate or hang off it. Using 100% woven materials allows you to place a minimum of material between you and your outerwear.

The result: A more stylish look. More comfortable layering. No billowing excess material.  No spongy, bulky knit material.




The Elastic used in conventional underwear applies constant, squeezing pressure. This causes it to creep, usually upward, into uncomfortable positions. For boxers this occurs at the waist. For briefs, this can occur both at the waist and at the legs.

Our NoLastic approach removes what you don’t need and don’t want: creeping and bunching.