The Maverik M4 lacrosse glove has a roomy fit and also allows players some extra added space on the back of the hand.These gloves are a softer, unrestricted feel that collegiate and high school players love. The other big thing is the mobility in the thumb and the increased ventilation in the palm.The M4 glove also has an adjustable looser fitting cuff system for added protection, but also loosened for maximum range of wrist motion. Maverik used the same, popular Ax-Suede material as the M3 because players liked it so much.Also back is the technology called 37.5 which is a material that self cools when wet.