Yes, this is normal. You may find small air bubbles at specific locations in your NeoMorph Mouthguard and very occasionally there may be a slight colour difference. This is due to the manufacturing process and will not affect performance. Please be assured that the NeoMorph Mouthguard is a premium product and every mouthguard is assessed prior to release. While some may have a slight difference in appearance this will not affect performance – your NeoMorph Mouthguard will perform and protect as intended. If however, you notice that the NCore™ (internal layer) is exposed, please contact us for a replacement.