Retention System: POC don't have a fancy name for this and simply call it the "Size adjustment system"

Armour holder

It also has a 5cm drop rear hem

11-42T: 11-13-15-18-21-24-28-32-36-42

a BACKLIGHT CLIP

TLD D4 Polyacrylite MIPS Helmet - M-L - Shadow Blue Ignore Wholesale Tier 2 Brand Rule Retention System: POC don't haveD4. Redefining everything The reigning king of full face helmets, the D4 range expands with a Polyacrylite model packing the same safety and comfort features as the premium carbon and composite models into a price conscious shell. Details make the D4 the most coveted full face in mountain biking, including Mips C2 brain protection, an air intake system for ventilation, and an unmatched anatomical fit. This helmet is designed and intended exclusively