eMitt Convertible Flip-top Mittens Flip-top gives warmth of a mitten and dexterity of a lightweight glove Grippy Dots help you hold onto things. Water Resistant Materials Flip them open to do just about anything without taking them off Zippered Pocket for hand warmer, cash or whatever. Extra Small - Youth's Hand, Small - Junior's/Woman's Small Hand, Medium - Woman's Large/Man's Small Hand, Large - Average Man's/Woman's Very Large Hand, Extra Large - Big Man's Hand Size Chart Measurements are from middle of wrist strap to top of the outside of the mitten. Subtract ~ 1/2 inch for a good fit in the glove fingers. Extra Small - 6.75" Small  7" Medium - 7-1/2" Large - 8" Xtra Large - 8-1/2"