The Hydrogen Liner Short is the perfect antidote to chafing, bone-rattling rides. These close-fitting shorts are designed to be worn alone on the road or beneath a mountain bike short, like APEX7's Oxygen short, for off-road fun. Its high-density chamois (padding) protects your undercarriage from getting saddle sore. Grippy silicone detailing on the inside of the leg and waist hem keep them secure and comfortable. Gripper detail on inner waist and leg hem ensuring a secure fit. High-density chamois for all day comfort Reflective leg prints Flatlock seams for next to skin comfort Compatible with APEX7 Oxygen Short and Nitrogen Pant 80% Polyamide and 20% Elastane