Top: 冂 two 二 (Take this part as the image of a crown), bottom: to avoid, escape 免 (an escaping rabbit 兔: long ears ⺈, big eyes 罒, legs 儿 but no tail 丶)
Mnemonic
It looks like a crown 冂,二 and is padded/cushioned with rabbit's fur: The crown.
This radical is similar to rabbit 兔, which escapes with its long legs. (Note the difference to the radical 'brilliant' 奂, which shows a woman giving birth.)
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