Brooks Source Midweight Arm Warmer Size:M/L Expandable storage capacity

Expandable storage capacity

Internal lithium-ion battery with convenient USB–C charging

6L Hourglass bladder

Weight: 12

Brooks Source Midweight Arm Warmer Size:M/L Expandable storage capacityTargeted warmth, no shirt attached. These running sleeves for warmth are great for cold weather runs when you dont want to wear bulky layers. Perfect for pairing with a tank on slightly chilly days, or layering under a t shirt, these arm warmers deliver freedom from weighty layers by providing comfortable warmth where you need it. The nearly seamless design provides chafe free comfort. The super soft fabric feels great against the skin while also