篮 is a bamboo basket; the top 竹 radical marks it as a woven container.
篮 has 竹 (bamboo) on top and 监 (jiān) below as the sound component. The bamboo radical points to its original meaning: a woven bamboo basket. That core sense survives in 篮子 (basket) and in 篮球 (basketball), where the 'basket' is the hoop.