The knees are thin. The area between the back pockets is also thin. The fabric is sturdy and the design is very cute. Please understand that this item shows signs of wear before purchasing. Dark blue long pants with a star-patterned waistband, slim fit design. - Color: Dark Blue - Design: Star-patterned waistband - Style: Slim fit - Pockets: Back pockets - Damage: Small holes Thank you for viewing.