Performance layers.


Hot-weather performance
anti-cling, anti-moisture tank for hot, humid days
Best for: summer runs, anti-cling comfort
Fit: classic tank
Designed for: 60~80° F
M's Helio Tech Tee
cling-free, ultra-fast drying comfort for the hottest temps + all day efforts
High-output performer
cling-free, ultra-fast drying comfort for the hottest temps + all day efforts
Best for: sweaty conditions, summer runs
Fit: classic tee
Designed for: 50~100° F
M's Runterra Bio Tee
cottony-soft feel, odor + thermal regulation, enhanced biodegradation
Everyday activewear + style
cottony-soft feel, odor + thermal regulation, enhanced biodegradation
Best for: daily runs, spontaneous adventures
Fit: regular
Designed for: 50~85+° F
M's Repeat Merino Tech Tee
lightweight, super soft + durable merino blend, ultimate stink-free comfort
Super versatile performance
lightweight, super soft + durable merino blend, ultimate stink-free comfort
Best for: packing light, run commuting
Fit: classic tee
Designed for: 40~80° F
M's Repeat Merino Tech Long Sleeve
lightweight, super soft + durable merino blend, 3-season performance
Ultimate base layer
lightweight, super soft + durable merino blend, 3-season performance
Best for: cool weather, variable conditions
Fit: slightly fitted
Designed for: 30~60° F