* Polyamide cooling fabric and seamless technology make this arm sleeve ultra cooler, soft, comfortable, and breathable.
* In summer, 99.8% UV cut can definitely protect your arms from sun burn when these sleeves on. Fast sweat kick-away and quick dry technology for excellent cooling effect and keep your arm fresh all day. In winter, it can also make your arm warmer.
* Machine wash separately on gentle cycle with cold water, tumble dry at very low temperature. Stay the same after wash.