Breath Thermo Long Sleeve – Women's

When cold morning runs or cool-weather trail days demand warmth without bulk, the Breath Thermo Long Sleeve is our pick for women who don't want to layer up. Mizuno's Breath Thermo fabric generates heat from moisture, so your own sweat works for you instead of against you. It's a smart base layer that earns its keep from late fall through early spring.

• Breath Thermo fabric converts moisture into heat, actively warming you as you work harder
• Long sleeve construction provides full arm coverage without restricting movement during runs or hikes
• Lightweight enough to wear as a standalone top or base layer under a shell or vest
• Built for cold-weather training in humid Southern conditions where sweat management matters
• Available in Black and Deep Blue — clean, versatile colorways that pair with most kits