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Father and son wearing matching modal underwear from TOP UNDERWEAR
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)
Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)

Lifetime Boys' Modal Boxer Briefs Pack, 100 Pairs (Ages 2–18)

$999.00

One purchase. A lifetime of underwear for your son.

The Lifetime Pack is 100 pairs of premium modal boxer briefs, curated across a full range of sizes so your son is covered from today through adulthood. Start wearing them now, keep pulling from the same drawer as he grows — no more scrambling to reorder every six months.

What's included

  • 100 pairs of ultra-soft modal boxer briefs
  • Full size progression — sizes 2T through XL, spanning ages 2 to 18 and into adulthood
  • Assorted colors — a mix of neutrals (blackout, cocoa, white) so every stage of his wardrobe is covered
  • Same fabric he'll wear as a grown man — 95% modal / 5% elastane, breathable, moisture-wicking, temperature-regulating

Why families buy it

  • Buy once, done for good — no annual reorders as he grows
  • Locked-in per-pair pricing well below buying by the pack over time
  • A meaningful gift for a new son, a birthday, or a milestone (graduation, first apartment)

Fabric & care

  • 95% modal, 5% elastane
  • Ultra-soft, breathable, moisture-wicking
  • Machine wash cold, tumble dry low

Ships as a single bundle. Sizes are pre-selected to match a typical growth curve; contact us after purchase if you'd like to adjust the mix.

Pairs well with

Frequently Asked Questions

Is it worth the price?

Our ultra-soft modal underwear is built to hold its shape and softness wash after wash, so you're not replacing worn-out pairs every few months. Quality fabric, reinforced seams, and a comfortable fit make it a smart everyday investment for men and boys.

What is your return policy?

For hygiene reasons, we can't accept worn underwear back. But we stand behind our Comfort Fit Promise. If there's a quality issue or major sizing miss, contact us and we'll do our best to fix it — including exchanges for unused pairs. We want you and your son happy in Top Underwear.

How do I find the right size?

Check our size chart on this page for detailed measurements. Our modal fabric has a comfortable stretch, but if you're between sizes, we generally recommend sizing up for the best fit.

How fast will my order ship?

Orders are typically processed within 1-2 business days and arrive within 3-7 business days depending on your location. You'll receive a tracking link by email once your order ships.

What if I pick the wrong sizes?

If something feels off, reach out to us. We offer size support and can help with exchanges on unused pairs so you're not stuck with the wrong fit. We'll always work with you to make it right.

Is the fabric comfortable for sensitive skin?

Yes. Our modal fabric is exceptionally soft, breathable, and gentle on skin, making it a great choice for sensitive skin. If you have specific sensitivities, we recommend checking the material details above before purchasing.

How do I care for modal fabric underwear?

Machine wash cold with like colors and tumble dry low or hang dry. Modal fabric is naturally durable and resists shrinking and pilling, so it keeps its softness and shape wash after wash. Avoid fabric softener and bleach to preserve the fibers.