Best in 7 days
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Description
Recombinant Rat IL-4 Protein _ 90169ESInterleukin 4 (IL 4), also known as B cell stimulatory factor 1, is a pleiotropic cytokine that induces differentiation of naive helper T cells (Th0 cells) to Th2 cells and produced by by mast cells, activated T cells and bone marrow stromal cells. Mature human IL 4 shares 55%, 39% and 43% aa sequence identity with bovine, mouse, and rat IL 4, respectively. It is a potent cytokine produced by T cells and to a lesser extent by tumor associated natural
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 51 reviews
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Product Reviews
★★★★★ 5
saucony for life, kidz.
Color: Navy/Silver/Pink, Size: 7 Big Kid, Color: Navy/Silver/Pink, Size: 7 Big Kid
… why I appreciate being an adult female with average-sized feet, Especially considering kids’ shoes are always way cooler!
The sizing is a bit wonky, I’m normally a women’s 8, EU 39 which were my last saucony’s ,
These were exchanged after buying the “big kid 7” (too big),
after replacing w the 6.5 (38.5 EU) I still wondered about sizing down more but I think they’re good, they just fit differently than my previous ones… also I replaced the very long blue laces (48”) with shorter white ones (40”), and now I’m keeping and loving the shoes!
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Reviewed in the United States on October 6, 2025
★★★★★ 3
Runs Narrow
Color: Blue/White, Size: 1 Big Kid
They seem to run quite narrow, for my son who wears a medium comfortably. The New Balance fit much better.
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Reviewed in the United States on July 4, 2021
★★★★★ 5
Saucony
Size: 3.5 Big Kid, Color: Silver/Purple
Bellas
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Comfortable boy shoes
Size: 4 Wide Big Kid, Color: Black/White
My son’s favorite sneakers. I think this is a fourth pair we ordered as he grows. Lightweight but mostly wide enough to be comfortable. I wouldn’t buy them for a full price but they are often in sale and then it’s great value for my money.
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Reviewed in the United States on October 5, 2025
★★★★★ 4
Merrell Unisex Child Wind 3.0 (4 Big Kid, Silver/Purple)Merrell Unisex Child Wind 3.0
Size: 4 Big Kid, Color: Silver/Purple
These shoes are cute and fit true to size! My daughter loves them.
However these are Saucony shoes, NOT Merrell. I guess these are owned by the same company (I had to look it up) but are still very much so separate brands so I think its a bit misleading to have them labeled Merrell on the listing but Saucony on the actual shoes.
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Reviewed in the United States on April 10, 2025
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