Men's Source Tight 9" DM SIZE:M Made from a medium-weight blend

Made from a medium-weight blend of 95% polyester and 5% spandex

*Specific percentage of Recycled Nylon will vary as Smartwool transitions to 100% Recycled Nylon in future seasons

Medical-grade compression targets the plantar fascia to reduce heel pain and swelling

this shirt delivers natural performance and softness in a regular fit that’s perfect for layering or wearing on its own

Engineered with 25-30 mmHg compression

Men's Source Tight 9" DM SIZE:M Made from a medium-weight blendPairing semi compressive fit with streamlined comfort, the Source 9" tight delivers stretch, support, and maximum range of motion for high speed workouts. Best for Cool weather runs Fast runs Storage Features Sleek design Storage options Optimized details Heat Pressed Detroit Marathon logo on right leg