Good quality and good zippers. Apart from the zipper from the knee to the ankle, it has an additional one, at the same spot, that opens for more ventilation. Good fit, but quite long... (for my proportions which I consider normal... I am neither short and stout, nor tall and thin...). I am posting a photo from the manufacturer for measurements and sizes. Due to its length, it tends to bunch up, significantly reducing the openings for air... For the same reason, the knee protectors do not stay in place perfectly... If you sit on the bike and adjust their position, I highly doubt they will protect you in a fall as much and as they should.... I decided to remove them and buy knee guards, which will be strapped externally on the leg and provide stable protection. The pants are... somewhat warm... I would call them spring or autumn pants and not summer ones... It didn't bother me much though...