AeroPro 3" vs Solid 1.5" Split Trainer: Which Women's Short?
By BOA | Running Shorts & Apparel | Made in the USA | Published: 2026-11-01
Category: Comparisons
Compare the AeroPro 3" Split Shorts and Solid 1.5" Split Trainer on inseam, waistband, coverage, and price so you can pick the right women's split shorts for speed or everyday training.
Quick answer
Choose the Women's AeroPro 3" Split Shorts if you want a longer 3" inseam, a low-profile perforated waistband, and four-way stretch for fast training and racing. Choose the Women's Solid 1.5" Split Trainer if you prefer a shorter 1.5" inseam, an elastic waistband with an internal key pocket, and a lower price for everyday runs.
Inseam and coverage: 3" vs 1.5"
The AeroPro 3" uses a 3-inch inseam with half-side splits, while the Solid 1.5" Split Trainer uses a 1.5-inch inseam with half-side splits. The extra 1.5 inches on the AeroPro gives more thigh coverage without giving up the split-short feel. The shorter Trainer leans more toward a classic race-day cut.
If you are moving between speed sessions and longer efforts, the AeroPro's longer inseam may reduce the chance of chafing on the inner thigh. If you prioritize a barely-there feel for short, hard efforts, the Trainer's 1.5-inch inseam is the more minimal option.
Waistband and fit details
The AeroPro 3" has a low-profile 2-inch perforated waistband and a flat drawcord for a no-slip, chafe-free fit. The Solid 1.5" Split Trainer uses an elastic waistband with a sleek internal key pocket. Neither waistband is described as adjustable beyond these details, so your preference for a drawcord versus a simple elastic band is the main decision point.
The AeroPro's perforated waistband is designed to keep you cool as you heat up. The Trainer's internal key pocket is a practical detail for carrying a key on shorter runs where you do not want a belt or armband.
Fabric and price trade-off
The AeroPro 3" outer shell is Accelerator Micro Mesh (83% polyester/17% spandex) with four-way stretch, and it has a built-in liner. The Solid 1.5" Split Trainer uses lightweight moisture-wicking fabric with a built-in smooth mesh liner. Both are designed to manage moisture, but the AeroPro's spandex blend is the one to note if stretch and recovery matter to you.
At catalog prices, the AeroPro 3" is USD 35.52 (compared with USD 48.00) and the Solid 1.5" Split Trainer is USD 25.50 (compared with USD 34.00). The Trainer costs less, but the AeroPro adds a longer inseam, a perforated waistband, and a drawcord. Neither price includes tax or shipping, and prices can change.
Key trade-offs to decide
- Coverage vs. minimal feel: The AeroPro 3" gives 3 inches of inseam; the Solid 1.5" Split Trainer gives 1.5 inches. Pick the AeroPro if you want more thigh coverage; pick the Trainer if you want the shortest, lightest feel. Try your usual size in both if you are unsure, because the 1.5-inch difference changes how much skin is exposed.
- Waistband security vs. simplicity: The AeroPro has a perforated waistband and flat drawcord; the Trainer has an elastic waistband and internal key pocket. Choose the drawcord if you have had waistbands slip; choose the key pocket if you run with a key and no belt.
- Stretch fabric vs. lower price: The AeroPro's shell is 83% polyester/17% spandex with four-way stretch. The Trainer uses lightweight moisture-wicking fabric at a lower catalog price. Pay more for the AeroPro if stretch matters; save with the Trainer if you want a straightforward short. Check the current price and return policy before ordering, since catalog prices can change.
Product facts at a glance
- Women's AeroPro 3" Split Shorts: 3" inseam with half-side splits, a 2" perforated waistband, a flat drawcord, and an Accelerator Micro Mesh shell (83% polyester/17% spandex) with four-way stretch. This combination gives you more coverage and a locked-in fit for faster or longer sessions where chafing and waistband movement are concerns.
Women's AeroPro 3" Split Shorts - Women's Solid 1.5" Split Trainer - Red: 1.5" inseam with half-side splits, lightweight moisture-wicking fabric, a smooth mesh liner, an elastic waistband, and an internal key pocket. This is a lighter, shorter option with a built-in place for a key, which suits short runs and race-day efforts where minimal coverage is preferred.
Women's Solid 1.5" Split Trainer - Red
Which shorts are right for you?
Best for
- Runners who want a 3-inch inseam with more coverage for speed sessions and longer efforts
- Women who prefer a drawcord waistband and four-way stretch fabric
- Athletes who want a perforated waistband to help manage heat
Not for
- Runners who want the shortest possible inseam and a lower price
- Women who prefer an elastic waistband with an internal key pocket over a drawcord
- Anyone who needs a specific size or color that is not currently available
