Originally Posted by thejokerswild
Masking in photoshop (or any decent editor) is the main tool. then desaturate what you plan to leave b/w. then there are a few methods to touch up colours. To keep it simple hue and saturation is easiest. Overall touching up the greyscale or colour is simple, adjust curves and level for desired depth and tonal range.
Or duplicate layer, desaturate the bottom layer, apply a layer mask to the top one and colour over the gloves.