Kamari Lassiter has an average build for his position, although he is light in weight, he has good balance in his muscle mass. However, it's still relatively light and is a disadvantage in certain aspects of his game, which will be even more pronounced in the NFL. He's not a flashy athlete; he doesn't possess excellent speed on the third level or elite acceleration, so he lacks recovery speed. However, Kamari is a fluid athlete with very good footwork, allowing him to develop good quickness.

His neutral backpedal technique is clean, but he predominantly uses the side-saddle technique in off-man coverage. His hips are fluid, and his transitions are smooth, though not elite. He executes very good breaks without any hiccups and has a strong "kick and close" technique. .

In press coverage, Lassiter demonstrates a lot of authority and has been able to handle receivers with larger frames, such as Xavier Legette, for example. He tends to let his hands linger, not being overly grabby but teetering on the edge, which in the NFL against better receivers might draw flags.
In off-man coverage, he employs a mix of neutral backpedaling and the side-saddle technique. He is patient and doesn't move too frequently, which is quite rare. He reacts well to breaks but can be susceptible to double moves. He also opens his hips quickly, which allows receivers to create separation with speed easily.
Lassiter has a very high football IQ in zone coverage; he reads the routes of opposing receivers excellently, demonstrating a strong understanding of space and what's happening in his zone. His fluid athleticism and good lateral agility, especially over short distances, allow him to cut across routes with ease and defend passes effectively, thanks to his strong closing speed. 

He doesn't have the best ball-tracking ability and tends to panic when he can't locate the ball on deep routes when his back is turned to the play. He is extremely competitive in traffic or when attacking the receiver to go for the catch point. Despite his average size, he plays with a lot of aggressiveness and is really strong in this area.

Lassiter's run support is extremely aggressive. He recognizes screens very quickly, allowing him to tackle the receiver before he even completes his transition from receiver to runner. He displays strong hands at the line of scrimmage, although his average build and not being the most powerful don't allow him to have an elite impact. He takes good tackling angles, his technique is clean even though he lacks a bit of arm length, hence radius in my opinion. The wraps are there and there's hardly anything to criticize. 

Kamari Lassiter is a very intriguing prospect due to his finishing abilities and high football IQ. While he lacks elite size and athletic traits to be considered a top prospect, he can be a significant asset against the run and screen plays, in addition to being capable of playing in the slot or boundary positions. Being utilized in a scheme that emphasizes off-man coverage and zone coverages, particularly Cover 3, could be a great asset for him.
I would evaluate Kamari Lassiter as a Day 2 prospect. A selection in the second round could be justified given his qualities, but a third-round pick might also make sense considering that his transition to the NFL could be challenging to become a CB1.