Mad Wave's Drive Men's low-waist Jammers will provide you with an outstanding design and extended compression characteristics to help improve your swimming technique and achieve your training goals! Made of extra-durable chlorine-resistant fabric (TRAINING LINE), the jammers feature a 45 cm leg length and drawstring waist for a secure fit and superior comfort swim after swim.FEATURES: TRAINING - maximum durability, ideal form support, 100% resistant to chlorine and salt water, dries fast; Low-rise - provides comfort and maximum freedom of movement; Additional compression - creates additional compression for thigh muscles, increasing the effectiveness of your training session; Improved glide - makes it possible to decrease drag in the water, increasing speed.