Q Core SLX Sleeping Pad Lime Green - Wide Regular. The Q-Core SLX ups the ante on quilted comfort in the backcountry. Redesigned offset I-Beams create incredible multi-directional support and stability. The Q-Core SLX is lighter, tougher, easier to inflate/deflate, packs smaller, sleeps warmer... when it comes to superlight, 3-season comfort this pad stands alone.