TWO IN ONE VERSATILITY - Switch between fingerless gloves and cozy mittens. The mitten top can stow away in a pocket on the back of your hand - freeing your fingers for texting or taking photos.SEPARATE THUMB TOPS W/ MAGNETS- Hidden magnets hold the thumb flaps in place when not in use. The separate thumb flaps ensure that these winter mittens have a snug, secure fit.4-WAY STRETCH - Polartec Power Stretch Pro Fabric provides protection in cooler weather, making these feature packed men’s mittens great for active use. Note: designed for aerobic activity, not suitable for standalone use in extreme cold weather. The Men’s S/M are 3 ¾ inches in width, 8 ¼ -8 ¾ in length, the M/L are 4 ¼ in width and 8 ¾ - 9 ¼ in length.BE SAFE, BE SEEN - reflective stripes across the back of each of these black mittens help the wearer be seen during the short, dark days of winter.TRAIL TESTED GUARANTEE - If you’re not happy with your purchase, let us know and we’ll provide a replacement or refund - no fine print, no time limit. Nothing but our commitment to do what it takes to satisfy our customers.