Great quality, all cotton. Does not retain liquid, but the underside is protected by a medium-thick cotton pad. I bought the 18m for my 12 month old son (he weighs 20 pounds). Fits well. Washed and dried over and over again. Doesn't stretch much. I'm not sure if it's comfortable "training underwear" (I'm helping my son undress right now) but for our summer it certainly should be.
Gioberti Boys' Black Front Dress Pants π - Elegant and Stylish Clothing for Young Gentlemen
47 Review
Carhartt Boys' Washed Dunagree Realtree Pants - Ideal Boys' Clothing for Outdoor Activities
46 Review
Spotted Zebra Waistband 5 Pocket Pants Boys' Clothing
49 Review
π©³ Comfortable & Stylish: UNACOO Fleece Sweatpants for Boys β Perfect Casual & Active Clothing!
49 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review