The Shred Ready brand specialises in helmets for many sports. These ones are for watersports and therefore are CE marked and tested accordingly. Fullcut standard and the sidecut Standard are the same shape helmet but with or without earpieces. This listing is fullcut ie. with the ear pieces. The earpieces cannot be removed . The plastic helmet shell comes is made in one size and then foam lined,the size adjustment is done through a combination of pairs of front and rear pads that velcro in small , medium and large are provided. Then there is a wind up adjuster at the nape of the neck. This system is common on snowboard boots, just turn the dial to tighten or press the leaver to release. Then you have your neck strap, shorten till comfortable. We don’t always have in all colours, but can often get within a few days. The black is now called carbon black as it has a finish that looks like carbon weave, which requires it to be a dark grey/black pattern, but helmet is ABS plastic, this is only a graphic.