Amazon cuts up to 70% off men's and women's premium denim as part of its Spring for Denim Event. (Prices are as marked.) Plus, Prime members bag free shipping on all orders. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping starts around $5.) Choose from brands such as Lucky, True Religion, Buffalo David Bitton, and Diesel. Deal ends March 17. A couple of best bets, each with free shipping:

• Lucky Brand Men's 361 Vintage Jeans from $24.74 (pictured, low by $23)
• 7 For All Mankind Women's Petite Dojo Wide-Leg Jeans for $141.75 ($47 off)