Curl describes how much the lash lifts upwards.
C curl is the gentle, natural curl, and most of our range is C curl. D curl is more lifted and opens the eye more; in the core range Subtle Volume, Wispy Volume, Feathered Volume and Pre-mapped Volume D are D curl, and D curl is what we recommend for glasses wearers because it sits away from the lens. DD curl is the most lifted and dramatic of all, and is found only in the Life Without Infills collection (Hybrid and Russian Volume).
Lengths depend on the format.
Cluster full sets come as five rows in one of two maps: the classic map (two rows of 10mm, two of 12mm, one of 14mm) or the bold map (one row of 10mm, three of 12mm, one of 14mm). Petite packs are 8, 10 and 10mm. Life Without Infills styles run from 10 to 16mm and are the only styles with 16mm. Half lashes are a single graduated strip, shorter at the inner end and longer at the outer, for example Bare at 4 to 10mm and Velvet Volume at 6 to 15mm.
If you want to stock up on one length, single length packs are available in 10, 12, 14 and 16mm across most styles.