Carry C300 Series: Designed specifically for the C300 series. Carry Anker SOLIX C300 DC or C300 anywhere. 1.3 - 4.9 ft Adjustable Length: A simple adjustment gets you set so that the shoulder strap feels right. Adjust length between 1.3 and 4.9 ft. Reduce Shoulder Strain: A unique shoulder pad design increases your comfort and reduces shoulder strain, even when you're carrying for an extended journey. Open Bottles, Too: When you're in a pinch, open a cold one with the shoulder strap bottle opener for more outdoor adventure convenience. /