Albee Baby takes 20% offregular-priced items via coupon code "MAR20". Shipping adds $4.95, but orders of $49 or more bag free shipping. Many brands are excluded. Coupon ends March 27. A couple of best bets, with prices after coupon:
Amazon offers the Chicco Smart Support Backpack in Graphite for $84.99 with free shipping. That's the lowest total price we could find by $15. This 6.5-lb. backpack features a three-position, height-adjustable seat and padded straps, supporting children from 17 to 40 lbs.