This Elizabeth collar is waterproof and easy to clean. The flower style is also very cute.
Size description by weight:
S-recommended for cats weight under 3 Ib
M-recommended for cats weight 3-6 Ib
L-recommended for cats weight 6-14 Ib
Size description by age:
S-recommended for cats 2-4 month old
M-recommended for cats 4-8 month old
L-recommended for cats over 8 month old
The size L is recommended for cats after a sterilization surgery.