If your son prefers boxer briefs, then these boys' cotton underwear are the way to go. They're available in packs of eight or 14 and feature cute
Boys' Underwear Briefs Soft 100% Cotton 6-8 Pack Kids Underwear Toddler Undies : : Clothing, Shoes & Accessories
Fruit of the Loom Toddler Boys' Days of The Week Briefs, 7-Pack, Sizes 2T/3T, 4T/5T
Calvin Klein Breathable Boys' Cotton Underwear Boxer Briefs, 2-Pack
Organic Cotton Kids Bikini Underwear - 3 Pack - Mightly
Men's Cotton White Briefs, Extended Size
Hanes Originals Ultimate Cotton Stretch Women's Boyshort Underwear Pack, 3- Pack 45UOBB - JCPenney
Essentials Boys Cotton Briefs Underwear
Nike Men's Dri-FIT Essential Micro Boxer Briefs 3-Pack - Black/Blue/Grey
Jockey® Boys' Cotton Stretch Boxer Brief - 3 Pack
Everlast Boxer Briefs - 4 Pack – Everlast Canada