Cotton vs TENCELTM Modal Trunks 3-Pack: Which to Buy?

Quick answer

Choose the Cotton 4.5" Trunks 3-Pack if you want a familiar, lightly stretchy cotton blend at a lower catalog price. Choose the TENCELTM Modal 3-Pack if you prioritize a silkier, highly stretchy feel with full coverage and a stay-put waistband.

Fabric feel and stretch: cotton blend vs TENCELTM Modal

The cotton trunks use a supersoft cotton blend that gives just a hint of stretch. That makes them a good match if you like underwear that feels like cotton but moves with you without being overly elastic.

The TENCELTM Modal trunks are made from 95% TENCELTM Modal and 5% spandex, and the catalog describes them as highly stretchy and as soft as a kitten. If you want a smoother, more fluid feel against the skin, Modal has the edge.

Coverage and waistband: both share the same 4.5" trunk shape

Both 3-packs are 4.5" inseam trunks with a mid rise and a signature stay-put waistband. The difference is in the fabric and the resulting hand-feel, not the cut.

The Modal version is described as giving full coverage with the feeling of wearing nothing at all, while the cotton version is positioned as a classic trunk between a short and a brief. If you already know you like the 4.5" trunk length, the decision comes down to fabric preference.

Price and value: what the catalog comparison shows

At catalog prices, the Cotton 3-Pack is USD 62.10 (compared with USD 90.00), and the TENCELTM Modal 3-Pack is USD 70.38 (compared with USD 102.00). The Modal pack costs more, which reflects the upgraded fabric.

If you are building a first multipack or want to keep costs lower, cotton is the practical entry point. If you already know you love Modal's softness, the higher price may be worth it for everyday comfort.

Breathability and care: what we can and cannot say

The catalog does not provide breathability ratings or care instructions for either pack. Rather than guess, treat breathability as a personal preference: cotton is a traditional choice for a dry, familiar feel, while Modal is chosen for its smooth, stretchy softness.

For care, follow the label on your specific pack. If you want detailed fabric care guidance, see our separate guide on caring for TENCELTM Modal underwear.

Trade-offs to weigh before you buy

• Cotton 3-Pack: lower price, familiar feel: Choose cotton if you want a classic trunk with just a hint of stretch and a lower catalog price. Accept that it will not feel as silky or as stretchy as Modal.
• TENCELTM Modal 3-Pack: softer, stretchier, higher price: Choose Modal if a highly stretchy, silky-soft fabric and full coverage matter more to you than saving on the pack. Accept the higher catalog price.
• Same 4.5" trunk fit, different fabric: Both packs share a 4.5" inseam, mid rise, and stay-put waistband, so you do not need to relearn the fit. Base your choice on fabric preference and budget. If you are unsure, start with the cotton pack to confirm you like the 4.5" trunk shape, then upgrade to Modal.

Product facts

• 4.5" Trunks 3-Pack - Cotton: Supersoft cotton blend with a hint of stretch and a signature stay-put waistband. Gives you a familiar cotton feel that stays in place without pinching or riding up, at a lower catalog price.

  

• 4.5" Trunks 3-Pack - TENCEL™ Modal Black: 95% TENCELTM Modal and 5% spandex, highly stretchy, with a stay-put silky soft waistband. Delivers a smoother, more flexible feel and full coverage if you prefer a silkier fabric against your skin.

  

Who should choose which pack

Best for

• Shoppers who want a lower-priced cotton trunk multipack for everyday wear
• Anyone who prefers a familiar cotton blend with light stretch
• First-time buyers testing the 4.5" trunk fit

Not for

• Shoppers who want the silkiest, most stretchy feel and are willing to pay more
• Anyone specifically seeking TENCELTM Modal's smooth, full-coverage hand-feel