Runderwear Men's Running Long Boxer exclude_rewards 100 IU Vitamin D to

100 IU Vitamin D to help the body absorb and utilize calcium

"Cooling the neck via a cooling collar can improve exercise performance in a hot environment but it appears that there may be a thermal strain threshold which must be breached to gain a performance benefit from the collar

This will work in all of the current models that utilize a li-ion 18650 battery

Floating yoke design ensures consistent fit comfort at any setting

Runderwear Men's Running Long Boxer exclude_rewards 100 IU Vitamin D toEnjoy the satisfaction of chafe free running with our lightweight, Long Running Boxers that deliver total protection for your thighs. Stay cool and dry as the breathable fabric quickly wicks sweat away from your skin. 100% comfort, 100% chafe free guaranteed. What is Runderwear? Runderwear is the original performance underwear for running. Our mission is to eliminate the discomfort caused by ill fitting underwear and clothing and create performance