OVER-UNDER hook and loop closure with a LOCKDOWN drawstring featuring non-slip silicone treads * COMBAT CUT waistband allows the freedom of movement required by any martial arts fighting * 3XRS triple reinforced seams provide unmatched strength and durability * Constructed from VASTEK charcoaled bamboo fibers that retain bio-thermal heat essential to intermuscular vascular * FULL GUARD protection infused with antimicrobial polymers and an antiseptic coating to neutralize common causes of odors