can you recommend some good back carriers?

好牌子是Kelty，价钱不菲，起码200以上。户外运动，hiking比较多的话，是很不错的。

如果普通散步，或者短时间的，Evenflo snugli cross country/cross terrain 分别是69。99/99。99 在amazon上有。好像店里面也有。





我看了4月的american baby, 上面有介绍3 款backpacks,
1, Sherpani's $166 for hinking with sunshade and rain cover, can carry baby up tp 70pounds
2, Ergo $92, Durability/strength tested up to 90 pounds, 前，后， 侧都可以
3, the Catbird baby $98, can be also worn on the front, back and hip