S26 Tacks XR Shoulder Pads Senior msr It offers support for the infant toddler It offers support for the child's waist and head while the new anti snag YKK® zipper prevents wear and tear with easy entries and exits Air channel + ADPTFIT length adjustable straps: Competitive ventilation with air channels inside liner and length adjustable torso straps to facilitate finding your ideal custom fit Single piece back base panel + moulded EVA foam lower back pad + D3O® at sternum & back spine: Single piece back base panel provides elite mobility and comfort while the moulded EVA foams in lower back offer maximum protection with D3O® at sternum and back spine