C4 4 Strand Head Team Rope 31' Relentless by Cactus RopesC4 4 Strand Head Team Rope 31' Relentless by Cactus Ropes 4 Strand Head Rope 100% Pure Nylon Length: 31' Available Lays: XXS, XS, S Best rope for over 85 degrees The C 4 was designed by Trevor Brazile as part of his Relentless line to compliment the Xplosion in hot weather. When it starts getting summer hot out, this rope will impress you as it feels better and better every single run. When its over 85 degrees, ropers will find this rope will hold up